got to be certain

基本解釋

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(lái)：是否在男生們住的地方真有一些細(xì)微的差別來(lái)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(lái)可以站起來(lái)，但是，即使我站起身來(lái)瞧瞧它，十之八九我也說(shuō)不出它到底是什麼；因爲(wèi)一旦一件事發(fā)生以後，就沒有人能知道它是怎麼發(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.
但這竝不完全是創(chuàng)新之?dāng)H：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.
但是你在外麪，你必須要小心。然後積極行動(dòng)。
我使用自行車 - SpeakingMax英語(yǔ)口語(yǔ)達(dá)人

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