was eating是什么時(shí)態(tài)

　　Wages were rising faster than productivity and this was eating into profits.

　　工資的漲幅高過了生產(chǎn)率增長的速度，從而消耗了利潤所得。

　　I was eating ham and Swiss cheese on rye.

　　我正吃夾火腿和瑞士干酪的黑麥面包。

　　She was eating a sandwich

　　她在吃三明治。

　　She was eating a hamburger.

　　她在吃漢堡包。

　　The pigeon was eating and cooing at the same time.

　　鴿子一邊兒吃，一邊兒咕咕地叫。