Vacillating
a. 犹豫的, 踌躇的
✅ 同义词
🔴 反义词
🗣️ 情景例句
Yes, a double room, please. What?
对， 双人房间 麻烦你。什么？
That's rather disappointing.
真是让人失望。
Once the existence of this wave-length had been discovered,
一旦这种波长的实际存在被发现，