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Training Mode - Typing
Fill the gaps to the Lyric - Best method
Training Mode - Picking
Pick the correct word to fill in the gap
Fill In The Blank
Find the missing words in a sentence Requires 5 vocabulary annotations
Vocabulary Match
Match the words to the definitions Requires 10 vocabulary annotations

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The example sentences of CONCENTRATOR in videos (2 in total of 6)

"Demonstration of Bubble CPAP for the Low Resource Environment" by Traci Wolbrink for OPENPediatrics English (US)
cylinder noun, singular or mass or coordinating conjunction an determiner oxygen noun, singular or mass concentrator proper noun, singular , as adverb long adverb as preposition or subordinating conjunction you personal pronoun have verb, non-3rd person singular present enough adjective flow noun, singular or mass to to make verb, base form the determiner system noun, singular or mass
VOCSN Hands On Demonstration English (US)
as preposition or subordinating conjunction you personal pronoun can modal hear verb, base form , the determiner vocsn proper noun, singular internal adjective oxygen noun, singular or mass concentrator proper noun, singular is verb, 3rd person singular present three cardinal number times noun, plural quieter verb, non-3rd person singular present than preposition or subordinating conjunction any determiner

Definition and meaning of CONCENTRATOR

What does "concentrator mean?"