简答题 Where is the fourth engineer?

简答题 Check the air compressor and report.

简答题 Check the fresh water generator and report.

简答题 I work on an oil tanker.

简答题 Please show me your passport.

简答题 All the engineers and the motormen are working in the engine room.

简答题 Are you in the engine department?

简答题 Please clean the oil separator room.