When the conductor knocks on the door they slip the ticket under the door, the conductor clips it and slides it back under the door and off he goes.

列车员敲了敲厕所门说要查票，他们就把那一张票从门缝里塞出去，列车员剪了票又把票从门缝塞了回去，然后就到下一节车厢去了。

youdao

Even if thefirst meaning is the intended one—as we can assume it is—the latter sentenceleaves the door open for Steinman to slip in.

即使第一句话的意思是故意的——我们可以假设是如此，后一句仍然为斯坦曼的侥幸留了一扇虚掩之门。

youdao

I slip past the throngs at the door and enter.

我悄悄溜过门前的人群，进了大门。

youdao

It purchased Kevlar shields that slip into door panels, retrofitted windshields with shatter-proof Mylar and outfitted truck cabs with ballistic blankets which may or may not slow down bullets and shrapnel.

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They can pay a few dollars to listen to, say, Flaco Jimenez, a frenetic and brilliant San Antonio accordionist, or slip next door to catch Mitch Watkins, a hometown guitar legend, or mooch even further down Sixth Street to catch a promising young funk band.

ECONOMIST: Country music

He would slash out his quarry with a razor blade, tuck it inside his shirt and slip out the door.

FORBES: Atlas Unbound