词源不详。可能来自拟声词，同boom.

1. It did give me a boost to win such a big event.

赢得如此重大的比赛确实使我信心倍增。

2. Do what you can to give her confidence and boost her morale.

尽你所能让她树立信心，提高士气。

3. Without a major boost in tourism, the economy will suffer even further.

旅游业如果没有大的起色，经济状况会每况愈下。

4. Economic theory suggests that the devalued pound will boost the economy.

经济学理论指出贬值的英镑将会促进经济的发展。

5. The movie helped boost her screen career.

那部电影有助于她的银幕生涯的发展。