walk about walk out 两个的意思？Thank you~

walk about:

vt. 徘徊(游荡)

例句与用法:
1. I can't walk about in this heat.
我不能在这种酷热下走路。

2. She likes to walk about.
她喜欢到处走走。

英英解释:
名词walk about:

1. a walking trip or tour
同义词：walkabout

2. a public stroll by a celebrity to meet people informally
同义词：walkabout

3. nomadic excursions into the bush made by an Aborigine
同义词：walkabout

动词walk about:

1. walk with no particular goal
同义词：perambulate, walk around

walk out:

vt. 罢工(退席,谈恋爱,请假外出)

例句与用法:
1. He had a row with his wife and just walked out on her.
他和妻子吵架后就把她抛弃了。

2. They were walking out for years before they got married.
他们恋爱多年才结婚.

3. The auto workers hurled down their tools and walked out.
那些汽车工人扔下工具，举行罢工。

4. The men in that factory walked out yesterday.
那家工厂的工人昨天罢工了。