Be secured of
对…有信心,认为…靠得住
🧩 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;
a. 有担保的
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 wasn't born yesterday.
我又不是三岁的孩子。
When I'm going to buy a TV set next time, I'll buy a console model.
下次买电视机的时候，我买叫大屏幕的。
Certainly!said her mother.
“当然可以！”她妈妈说。