Variopter
(滑动)光学计算尺
🗣️ 情景例句
Would you happen to have a room for two availbale
你们可有一个双人房间
Our own actions are our security,not others' judgements.
我们的行为是自己的保证，并不是旁人的鉴定。
He saved money for years and in 1958 he bought a small workshop of his own.
他靠多年积蓄，于1958年买下了自己的一个小铺子。