n. a pillow that is often put across a bed underneath the regular pillows
v. support and strengthen
v. prop up with a pillow or bolster
n. 支持, 长枕
vt. 支持, 支撑
1. She used a pillow to bolster her back while sitting on the couch.
她在沙发上坐的时候，用一个枕头来支撑她的背部。
2. The team needs to bolster their defense if they want to win the championship.
如果球队想赢得冠军，他们需要加强防守。
3. He gave a speech to bolster the morale of his coworkers.
他发表了演讲以鼓舞同事们的士气。