Backpacking
n. 徒步旅行
📖 牛津释义
backpacking
n [U].
🗣️ 情景例句
Are you all right?
你怎么了？
If you have time,will you call me tomorrow?
如果你有时间，你明天将打电话给我？
That's easier said than done!
说来容易做起来难哪！