Warn of
大学 College警告…,有…危险
🧩 词语组成解析
warn
[wɔrn]
vt. 警告，告诫;通知;预告;
vi. 发出警告;
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
I'm going to excuse myself.
很抱歉失陪。
Affairs that are done by due degrees are soon ended.
事情要安步就班地做，就会很快地做完。
It was made in Germany in 1681.
是1681年德国造的。