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
This is Wang with China Bank.
我是中国银行的王先生。
I should have studied last night, but I was too tired.
我昨晚应该学习，但是我太累了。
When he placed little dishes of honey on a table, bees soon same.
当他把装有蜂蜜的小碟放在桌上时，蜜蜂很快就飞来。