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Training Mode - Typing
Fill the gaps to the Lyric - Best method
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Free-space optical communication

4,045 views

Video Language:

  • English

Caption Language:

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

Accent:

  • English (US)

Speech Time:

96%
  • 16:39 / 17:18

Speech Rate:

  • 130 wpm - Conversational

Category:

  • Education

Tags :

Intro:

Video Vocabulary

/kəˈmyo͞onəˌkāt/

verb

To give and exchange information.

/tôrCH/

noun other verb

portable means of illumination such as piece of wood or cloth soaked in tallow. Lights or flames to be carried in the hand. To set fire to something.

/əˈstabliSHt/

adjective verb

having existed or done something for long time and therefore recognized and generally accepted. To set or create something to last for a long time.

/ˈdāˌlīt/

noun

Light of the sun during the day.

/ˈfizik(ə)l/

adjective noun

Concerning things that can be seen or touched. Health check at the doctors' or hospital.

/kəˈlōnyəl/

adjective noun

relating to colony or colonies. native or inhabitant of colony.

/ˈwī(ə)rləs/

adjective noun

Needing no wires to make something operate. broadcasting, computer networking, or other communication using radio signals.

/imˈpraktək(ə)l/

adjective

not adapted for use or action.

/ˈdekād/

noun other

period of ten years. Periods of 10 years.

/ˈTHouz(ə)nd/

number

1000s.

/ˈteləˌfōn/

noun verb

system for transmitting voices over distance using wire or radio. To talk to someone using a phone.

/kənˈdəktəd/

adjective verb

led by guide. To lead or guide people.

/ˈpräpəˌɡāt/

verb

To make new plants from parts of another one.

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