boost:to make something increase, or become better or more successful 使增长；使兴旺
to boost exports/profits 增加出口；提高利润
The movie helped boost her screen career. 那部电影有助于她的银幕生涯的发展。
to boost somebody's confidence/morale 增强某人的信心╱士气
Getting that job did a lot to boost his ego(= make him feel more confident). 得到那份工作使他信心倍增。
