7.hobble  v./n. 蹒跚而行，跛行
句子

The old man hobbled along with the aid of his stick.

8. compensate  v.补偿
词句

Nothing can compensate for the loss of one's heath.
compensate for sth. 补偿，弥补
近义表达
make up for sth.
Hard work can make up for a lack of intelligence.
offset v.抵消

offset sth. By (doing ) sth. 通过......来抵消
He offsets his small salary by living economically.

9.mumble v.喃喃而语
词句

What are you mumbling about?
He mumbled something to me which  I didn't quite catch.
mumble about sth. 低声说，咕哝