规则中的了望适用于在能见度受限时，在黄昏和拂晓之间，在繁忙的交通中。

The rule regarding lookouts applies . A. In restricted visibility. B. Between dusk and dawn. C. In heavy traffic. D. All of the above.

youdao

If there's no heat flow between the b and c, then I can say all right, a and c were the same temperature.

如果在与之间没有热量流动，那么我就可以说，好吧与处于相同的温度。

麻省理工公开课 - 热力学与动力学课程节选

In fact, we have some claim, and a Roman writer later on, that there was a treaty back in the eighth century B.C.

实际上,之后一个罗马作家,写到过一些声明,公元前八世纪在埃维厄岛几个城邦之间

耶鲁公开课 - 古希腊历史简介课程节选

In this case we have a double bond between a and b, and in this case we have it between b and c.

在这种情况下，我们在，A，与，B，之间有一个双键，而在这种情况下，双键在，B，与，C，之间。

麻省理工公开课 - 化学原理课程节选