n.

any specific behavior

"they avoided all recreational activity"

the state of being active

"his sphere of activity"

同義詞：actionactiveness

an organic process that takes place in the body

"respiratory activity"

同義詞：bodily processbody processbodily function

(chemistry) the capacity of a substance to take part in a chemical reaction

"catalytic activity"

a process existing in or produced by nature (rather than by the intent of human beings)

"volcanic activity"

同義詞：natural processnatural actionaction

the trait of being active; moving or acting rapidly and energetically

"the level of activity declines with age"

同義詞：activeness

1. Many companies use activity-based costing to improve cost accuracy.
   許多公司使用作業(yè)成本法來提高成本的準(zhǔn)確性。
2. By implementing activity-based costing, the firm was able to identify unprofitable products.
   通過實(shí)施作業(yè)成本法，公司能夠識別出不盈利的產(chǎn)品。