Preparative
a. 准备性的, 预备性的\\nn. 预备, 准备, 预备信号
✅ 同义词
🗣️ 情景例句
OK?
好吗？
That radio's pretty loud. Could you turn it down, please?
收音机太响了，你能把声音开小一点吗？
He was still smiling when the door opened and his wife came in.
他正笑着的时候门开了，他的妻子走了进来。