Be sure of
其它 Other确信..., 肯定..., 对...有把握
🧩 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;
sure
[ʃʊr]
adj. 确信的，确实的;有把握的;无疑的;一定的;
adv. 当然;确实地;无疑地;
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
When you read, read as loudly as possible, as clearly as possible and as quickly as possible.
当你读的时候，要尽量大声、尽量清晰和尽量快速。
To hover
盘旋
When Harry put on his act of being mildly annoyed, the assistant promised to order some for him.
哈里装出不高兴的样子时，女售货员答应为他定货。