Backpacker
[ ['bækˌpækə] ]
公共 Public
n. 背包旅行者
📖 牛津释义
backpacker
n.
🗣️ 情景例句
I think Michelle is better off staying where she is.
我觉得Michelle待在原地比较好。
May I reconfirm my flight?
我可以确认我的班机吗？
and by measuring the time interval between the taps and the receipt of the echoes, the depth of the sea at that point can be calculated.
测出回声间隔的时间，便可算出该处海洋的深度。