Vacillatory
a. vacillate的变形
✅ 同义词
🗣️ 情景例句
for giving me a passing grade.
给我及格分数。
May I take your message?
你需要留言吗？
No, thanks. It's big, but it isn't heavy. It's light.
不用了，谢谢，是大盒子，但不重。很轻。