1. To signal(crew members) with a boatswain's pipe. 信号是在蒸汽管道上打两拍。
2. We thought the boatswain a brute, and, practically , told him so. 我们认为这个水手长是个残忍的家伙，并几乎对他直言相告了。
3. And extend lens range strip form, abandon a boatswain chair arrangement that pass, show the originality on the design. 而将镜面铺成长条形，放弃一幅过的吊板安排，则表现出设计上的创意。
英英解释
n.
1. a petty officer on a merchant ship who controls the work of other seamen
