Vertimeter
n. [空]升降速度计
🗣️ 情景例句
Sir, I thought this was an emergency.
先生，我想这是一位急病患者。
Choice of the end covers choice of the means.
选择目的包含著选择手段。
He's awful!He telephoned me four times Yesterday, and three times the day before yesterday.
他讨厌透了！他昨天给我打了4次电话，前天打了3次。