Be cautious of
公共 Public留心..., 谨防...
🧩 词语组成解析
be
[bi]
v. 是;有，存在;做，成为;发生;
aux. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质;
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
Has poor scholastic record, just got by.
学习成功不够好，仅仅过得去而已。
I'm going to the hospital tomorrow for tests.
我明天要去医院接受检查。
It contained five large bars of chocolate and three bags of sweets!
里面装了5大块巧克力和3袋糖果！