So any time I draw these molecular orbitals, I do my best, and I'm not always perfect, yet trying to make this energy different exactly the same for the anti-bonding orbital being raised, versus the bonding orbital being lowered.

所以我在画这些分子轨道的时候，虽然不是很完美，但我总是尽量,让反键轨道引起的，能量升高和成键轨道。

麻省理工公开课 - 化学原理课程节选

Perfect chocolate? Whatever I'm eating at the moment,

经典的巧克力？无论现在我吃的是哪一种，

喜欢巧克力吗？ - SpeakingMax英语口语达人

He doesn't literally mean even that when we talk to ourselves somebody pats us on the head " and says, "Good man. Perfect. I'm very proud."

他更不是在说,当我们自言自语时,会有人拍拍我们的头,说“做的好，非常棒，我为你自豪“

耶鲁公开课 - 心理学导论课程节选

"In a perfect world I'm pushing side-to-side, but things happen quick sometimes, " Rask said.

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Kathy has also written several plays - Grommits, Wet Dreams, Perfect Mismatch and I'm So Happy For You I Really Am.

BBC: Kathy Lette is a novelist, playwright and broadcaster.

It's definitely far from perfect, and I'm sure mistakes have been made, but I just try to be clear about that.

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