1.
To spring or bound forward in a manner reminiscent of a spirited horse.
欢跃，雀跃象活跃的马一般象前跳跃或弹跳
2.
There is a brisk (dull) market.
市面活跃（萧条）。
3.
Not active or tending to be active.
不活动的不活跃的或倾向于不活跃的
4.
To set in motion;make active or more active.
使活动，使活泼使活动起来；使活跃或更活跃
5.
lessen the activity or force of.
减少……的活跃性或力量。
6.
the state of being not yet evident or active.
不明显或不活跃的状态。
7.
not in the most active period.
不在最活跃的时期的。
8.
a activeness of an energetic personality.
活跃的精力充沛的个性。
9.
Buoyancy [economics]
活跃,高涨,上升 [经济学]
10.
Be in full swing
活跃的，全力进行中
11.
Electrons are much more mobile than ions.
电子比离子活跃得多。
12.
be discharged or activated.
爆发的或有活跃性的。
13.
make less active or intense.
使变得不活跃或不剧烈。
14.
(cause sth to)become more active
（使某事物）变得更活跃
15.
The party began to warm up.
宴会开始活跃起来。
16.
The situation livened considerably.
气氛大大地活跃起来。
17.
from 190 million to 230 million years ago; dinosaurs, marine reptiles; volcanic activity.
恐龙，两栖动物，火山活跃。
18.
two-winged insects characterized by active flight.
飞行活跃的双翅昆虫。