got to be certain

常見例句

Looks can be deceiving, but it got me to wondering if there are certain nuances of a guy's place that tip off that he's single.
眼睛是可能被欺騙的，但這使我好奇起來：是否在男生們住的地方真有一些細(xì)微的差別來泄露他們是否單身呢？
I might get up, but if I got up and looked at it, ten to one I shouldn't be able to say for certain; because once a thing's done, no one ever knows how it happened.
我本來可以站起來，但是，即使我站起身來瞧瞧它，十之八九我也說不出它到底是什么；因?yàn)橐坏┮患掳l(fā)生以后，就沒有人能知道它是怎么發(fā)生的了。
This was not entirely new. Certain medieval scholars had already got there—Adelard of Bath, for example, who believed that Nature could be studied without recourse to its first cause, God.
但這并不完全是創(chuàng)新之舉：一些中世紀(jì)的學(xué)者早已開此先河——例如，巴斯的安德拉德相信自然研究可以不依賴最初的創(chuàng)造者—上帝。

but you've got to be certain when you get out there. And make a positive move.
但是你在外面，你必須要小心。然后積極行動(dòng)。
我使用自行車 - SpeakingMax英語口語達(dá)人

Vehicle exports got off to a fast start in 2008, and industry experts were certain that a record 1 million units would be exported in that year.
FORBES: China's Auto Market Keeps Booming
But it also got money from big tech companies, which got both an equity stake in the fund and a license for certain patents so they would be less likely to be sued by patent trolls.
FORBES: Magazine Article