短語詞組短語Boat rock drill 鑽巖船charter boat drill 救生縯習(xí)brear end boat drill 救生縯習(xí)boat drill signal 救生縯習(xí)信號Evacuation and Boat Drill 撤離和救生艇縯習(xí)life boat drill 沉船法則drill boat 鑽探船;鑽探船教練船;教練艇Rock drill boat 鑽巖船drill l boat 鑽探船 返回 boat drill