activity

英[æk'tiviti]美[æk'tiviti]

n.
1.[U]活动性；活力
2.[U]繁忙的或充满活力的活动
3.[C]【尤作复数】所做的事情，活动，工作，消遣

复　数：activities

同：	[n.] action, activeness, bodily function, natural action
反：	[n.] inaction, inactiveness, inactivity, inertia

Burning with ardor;stirring and seething with activity
热火朝天收藏
provided that they are applicable to the specific operating unit or activity that will be subject to the standard.
只要它们能够适用于本标准所规范的特定营运单位或活动。收藏
This subject had a somewhat vigorous but short-lived burst of activity in the seventeenth century
这门学科在十七世纪曾经有过相当活跃然而短暂的突进。收藏
Biological activity in a soil is influenced by soil acidity and nutrient status.
生物的活动被土壤养分含量状况所制约。收藏
To plunge into an activity or enterprise with vigor and gusto.
全身的投入，潜心钻研，探究。收藏

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