3. We need to put some zip into this presentation. 我们需要为这次演出注人一些活力。
英英解释
n.
1. a quantity of no importance
2. a code of letters and digits added to a postal address to aid in the sorting of mail
3. forceful exertion
4. a fastener for locking together two toothed edges by means of a sliding tab v.
1. close with a zipper
2. move very fast