dig的过去式与过去式

　　I dug around in my bag for a pen.

　　我在包里到处翻找笔。

　　We dug a deep pit in the yard.

　　我们在院子中挖了个深洞。

　　He kept making sly little digs at me.

　　他总是拐弯抹角地挖苦我。