Precautious
a. 有防备的, 警惕的, 戒备的
✅ 同义词
🗣️ 情景例句
Thanks.
谢谢。
He is working on a book about the Vietnam War.
他正在写一本关于越战的书。
Though these large machines still exist, many of their functions have been taken over by small powerful personal computers, commonly known as PCs.
虽然这种大计算机仍然存在，但它们的许多功能已被体积小但功能齐全的个人电脑——即我们常说的PC机——所代替了。