To be sure
出国 Abroad诚然, 固然, 哎呀
🧩 词语组成解析
to
[tu,tə]
prep. 向，朝着;到;关于;属于;
adv. 朝一个方向的;到某种状态;关闭;
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;
🗣️ 情景例句
How long does your vacation last?
你的假期有多长？
It is not polite to eavesdrop on the conversation of other people.
偷听他人说话是很不礼貌的。
Had he worked harder, he would have gotten though the exams.
如果他努力了的话，他就会通过考试的。