Islower
判断是否小写字母
🗣️ 情景例句
The guests are waiting.
客人们正等着呢。
And so, I'd like to proceed to the next stage.
所以，我要进行下一阶段了。
It has four Rolls-Royce Merlin engines, but the group will need to have only three of them rebuilt.
该飞机装装配有4台罗尔斯-罗伊斯的默林发动机，但是他们只需要修复其中的3台。