By Levels

Library

EXP: 08888
HITS: {{lyricTraining.hits}}888
STREAKS: {{lyricTraining.streaks}}888
TIME: {{lyricTraining.timeout / 1000}}88
{{word.word}}

{{cue.translated_text}}

{{lyricTraining.hint}}

x{{playblackSpeed.toFixed(2)}}

Loading ..

Not Found

{{annotation.word}} ({{annotation.pos_simplify}})

/{{annotation.phonetic}}/

{{annotation.translation}}

{{annotation.name}}

{{annotation.sub_type}}

{{annotation.definition}}
Back

Games & Quizzes

Training Mode - Typing
Fill the gaps to the Lyric - Best method
Training Mode - Picking
Pick the correct word to fill in the gap
{{game.name}}
{{game.description}} Requires {{game.required_annotions}} vocabulary annotations

Congratulations! You gained {{totalPoint}} XP

You may need to watch a part of the video to unlock quizzes

Don't forget to Sign In to save your points

Repeat Skip ({{game.question_index}}/{{game.questions.length}})
{{part}}
Repeat Skip ({{game.question_index + 1}}/{{game.questions.length}})
{{choice.text}}
{{choice.text}}

Make correct pairs from two columns

{{lyricTraining.finished && lyricTraining.timed_out ? 'Timed Out' : 'Challenge Accomplished'}}

PERFECT HITS {{lyricTraining.stats.PERFECT_HITS}} +{{lyricTraining.stats.PERFECT_HITS * 20}}
HITS {{lyricTraining.stats.HITS}} +{{lyricTraining.stats.HITS * 10}}
LONGEST STREAK {{lyricTraining.stats.LONGEST_STREAKS}} +{{lyricTraining.stats.LONGEST_STREAKS * 10}}
REMAINING TIME {{lyricTraining.timeout / 1000}}s +{{lyricTraining.timeout / 1000}}
TOTAL +{{lyricTraining.exp}}
{{word.word}} - {{dictionary.definition[0].phonetic || ("/" + dictionary.phonetics +"/")}} - {{word.translation}}

We couldn't find definitions for the word you were looking for.
Or maybe the current language is not supported

{{simpleDefinition.pos}}

{{simpleDefinition.def}}

{{word.word}}

Sentences & parts of speech:

  • {{tag.normal}} {{tag.pos_name}}

  • {{c.startTime | duration}}


    {{c.translated_text}}

All {{pos.pos_simplify}}
{{a.word || a.name}}
/{{a.phonetic}}/
{{a.type || a.sub_type}}
{{a.translation}} 		{{a.definition}}

Cell theory | Structure of a cell | Biology | Khan Academy

539,363 views

Khan Academy

Video Language:

  • English

Caption Language:

  • {{captionLanguage | language_name}} ({{captionLanguage}})

Accent:

  • English (US)

Speech Time:

96%
  • 7:47 / 8:02

Speech Rate:

  • 179 wpm - Fast

Category:

  • Education

Tags :

Intro:

Video Vocabulary

channel

/ˈCHanl/

noun verb

Long hole dug in the ground, e.g. to move water. To direct water or liquid through a passage.

publishes

/ˈpəbliSH/

verb

To prepare and make available a book magazine etc..

trillion

/ˈtrilyən/

noun number

Amounting to 1,000,000,000,000 in number. Amounting to 1,000,000,000,000 in number.

estimates
noun other verb

approximate calculation. Guesses or calculations of cost, size or value. roughly calculate.

leverage

/ˈlev(ə)rij/

noun verb

exertion of force by means of lever. use borrowed capital for investment.

actually

/ˈak(t)SH(o͞o)əlē/

adverb

Used to add new (often different) information.

primitive

/ˈprimədiv/

adjective noun

Being at an early or simple stage of development. person belonging to primitive society.

whatever

/(h)wətˈevər/

adjective adverb determiner exclamation pronoun

Referring to any particular kind, type, quantity. at all. Anything or everything needed; no matter what. said as response indicating reluctance to discuss something, often implying indifference. used to emphasize lack of restriction.

provide

/prəˈvīd/

verb

To make certain something will happen or be done.

describes

/dəˈskrīb/

verb

give detailed account in words of.

because

/bēˈkəz/

conjunction

For a reason.

picture

/ˈpik(t)SHər/

noun verb

Painting, drawing or photograph on paper or screen. To imagine someone or something in an image.

existence

/iɡˈzistəns/

noun

State of being present, alive or real.

unicellular

/ˌyo͞onəˈselyələr/

adjective

(of protozoans, certain algae, spores, etc.) consisting of single cell.

appreciate

/əˈprēSHēˌāt/

verb

recognize worth of.

Q
W
E
R
T
Y
U
I
O
P
A
S
D
F
G
H
J
K
L
Z
X
C
V
B
N
M