Variopter
(滑动)光学计算尺
🗣️ 情景例句
My favorite snacks are soda, popcorn and potato chips.
我最喜欢的零食是汽水、爆米花和薯片。
Speaking of trips,did I ever tell you about the experience I had?
谈论旅行,我曾经把我的经验告诉你了吗？
Though he is young, he knows a lot.
尽管小，他懂得多。