按照惯例，当要求我们再唱一次的时候，我们得先下台然后再返回台上。

We go offstage and come back for the convention of the encore.

《柯林斯英汉双解大词典》

因此，当任何领海发生争端，我们有责任按照国际惯例和平地解决这些问题。

When disputes arise over maritime territory, we are committed to resolving them peacefully based on customary international law.

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色彩按照惯例被显示在色环中，从中我们可以将所有颜色分为三类：基色，次生色和三次色。

Colors are traditionally shown in a color wheel, and from this wheel, we can separate colors into three main groups: primary, secondary and tertiary.

youdao

We could also, I think, well, maybe this isn't written out in terms of that convention, which sometimes it's not, so let's also try writing it, such that we have the hydrogen and the oxygen atom there.

我们也可以，我想，好吧，还有可能它不是按照惯例写的，有时候会出现这样的情况，因此，让我们把氢原子和,氧原子成键的情况也写出来。

麻省理工公开课 - 化学原理课程节选