1.We need a big win to boost our confidence.
我们需要大胜一场来增强信心。
2.The move is designed to boost sales during the peak-booking months of January and February.
这一举措旨在增加1月和2月预订高峰期的销售量。
3.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。