Backpacking
n. 徒步旅行
📖 牛津释义
backpacking
n [U].
🗣️ 情景例句
so I can study it.
以便我好好研究。
What time does the first train to Boston leave?
第一班去波士顿的列车什么时间开出呢？
While the five babies were babies were still quietly sleeping in oxygen tents in hospital nursery,
眼下，五胞胎还静静地躺在医院婴儿室的氧气帐里，