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》

按照世博会的惯例，一般是举办前两年召开第一次参展方会议。

According to the usual practice of the World Expo, the first participants meeting is normally held two years prior to the Expo.

youdao

按照惯例，标准的通知时间是两到四周，但你应该参考员工手册，以免你的雇主期望更早(或更晚)得到事先通知。

The standard notice has traditionally been two to four weeks, but you should consult your employee handbook in case your employer expects more (or less) advance warning.

youdao

Their observance protects the holy object from profanation, from being profaned, reverting from holy status back to common status.

它们按照惯例保护着神圣的东西不受亵渎，不受玷污，不让它们重新回归世俗。

耶鲁公开课 - 旧约导论课程节选

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

It's instead outside of them and, by convention, at the top of the file so that I can access it anywhere, whether or not this is a good thing, remains to be seen.

它在函数的外面，按照惯例，在文件的顶端，所以我可以在任何地方使用它,不管这是不是好事情，拭目以待。

哈佛公开课 - 计算机科学课程节选