英语词汇“helpfulness”的释义、用法及例句-英汉例句词典-知否

词汇	helpfulness
例句	noun Adult learners rated the helpfulness of various strategies differently. We were very impressed with the friendliness and helpfulness of the locals.
随便看	actuating act up act upon acuity acumen acupuncture a cushy number a cut above somebody/something acute acutely acuteness -acy acyclic AD ad A.D. adage adagio adagios adamant adamantine adamantly a (damn, etc.) sight better, etc. a (damn, etc.) sight too good, etc. a damp squib

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