Precautious
a. 有防备的, 警惕的, 戒备的
✅ 同义词
🗣️ 情景例句
The book is worth reading.
这本书值得一读。
They used to live there, didn't they?
他们过去住在哪里，不是吗？
You'll have to wear this hard hat for the tour.
参观时必需戴上这安全帽。