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}}

Development of agriculture and writing | Cosmology & Astronomy | Khan Academy

93,185 views

Khan Academy

Video Language:

  • English

Caption Language:

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

Accent:

  • English (US)

Speech Time:

99%
  • 13:02 / 13:03

Speech Rate:

  • 170 wpm - Fast

Category:

  • Education

Tags :

Intro:

Video Vocabulary

segments
noun other verb

each of parts into which something is or may be divided. Parts divided from the other parts of some things. divide something into separate parts or sections.

thousands

/ˈTHouz(ə)nd/

number

number equivalent to product of hundred and ten.

usually

/ˈyo͞oZH(o͞o)əlē/

adverb

Normally; regularly.

periods

/ˈpirēəd/

noun other

length or portion of time. Menstrual cycles.

confused

/kənˈfyo͞ozd/

adjective verb

Being hard to understand. To make something unclear or hard to understand.

talking

/ˈtôkiNG/

adjective noun verb

engaging in speech. action of talking. To say things or ideas to someone with words.

millions

/ˈmilyən/

number

1,000,000s.

geological

/ˌjēəˈläjəkəl/

adjective

Concerning studies of the Earth's rocks and soil.

actually

/ˈak(t)SH(o͞o)əlē/

adverb

Used to add new (often different) information.

hundred

/ˈhəndrəd/

noun number

subdivision of county or shire. ten more than ninety.

clarify

/ˈklerəˌfī/

verb

To make a liquid become clear or pure.

generally

/ˈjen(ə)rəlē/

adverb

in most cases.

referring

/rəˈfər/

verb

To give information about something.

because

/bēˈkəz/

conjunction

For a reason.

different

/ˈdif(ə)rənt/

adjective

Not of the same kind; unlike other things.

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