Constrainer
n. constrain的变形
🗣️ 情景例句
Good morning. Would you please bring me some breakfast?
早上好，可否为我送点早餐？
I'm free tomorrow.
我明天有空。
To escape from the Earth in a rocket, one must travel at seven miles per second.
要乘坐一枚火箭飞离地球，火箭的速度要达到每秒7英里，