v.

put in motion or move to act

同義詞：tripactuatetriggerset offspark offsparktrigger offtouch off

make active or more active

"activate an old file"

make more adsorptive

"activate a metal"

aerate (sewage) so as to favor the growth of organisms that decompose organic matter

同義詞：aerate

make (substances) radioactive

1. The switch activates the machine.
   這個開關啟動機器。
2. The enzyme activates the chemical reaction.
   這種酶激活了化學反應。