He studied math in college.他上大学时专业是数学。I flunked math in second grade.我二年级时数学不及格。The hard math problem tripped up most of the students.这道数学难题难倒了大多数学生....
在舰船上,级别最低的副舰长也位列级别最高的轮机官之上。The most junior executive officer outranked the senior engineer officer aboard ship.舰长统率舰上的全体官兵.The captain of a ship commands all the officers and men.海军上将在欢迎他的哨子声中登舰.The admiral was piped abo...