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1 (wiktionary) 2 (vi.wikipedia) 3 (en.wikipedia) 4 (glosbe)

Compounds Expand your vocabulary by studying more complex words built by the 'core words'.
Etymology Explore the origin of the 'core words'.
Wordsense Learn about the wordsenses of the english term.

TOPIK 11000 KOREAN WORDS

☆☆ BEING EFFICIENT; BEING EFFECTIVE tính hiệu suất, tính năng suất ☆☆ EFFICIENT; EFFECTIVE mang tính hiệu suất, mang tính năng suất

HSK 3.0 11000 CHINESE WORDS

7 得力 dé lì able, capable, competent, efficient 7 高效 gāoxiào efficient, highly effective

ENGLISH 6000 THEME WORDS

OXFORD 5000 CORE WORDS

efficient B2 adj. efficiently B2 adv.

TANAKA 6000 CORE WORDS

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Our solution is not efficient. Giải pháp của chúng tôi không hiệu quả. Adjectives 2
efficient. hiệu quả Adjectives 2
Be polite, be efficient but always have a plan to kill anyone. Lịch sự, hiệu quả nhưng luôn có một kế hoạch để giết bất kỳ ai. Verbs 5

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