他没有按当时的习惯根据定货制做犁杖，而是提前做好，然后骑着马在乡村叫卖。

Instead of making plows to order, as was customary at the time, he made them in advance and then rode around the countryside peddling them.

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加拿大的诽谤法是以英国的习惯法为根据的。

Canadian libel law is based on English common law.

《柯林斯英汉双解大词典》

根据她对道格拉斯的习惯的了解，她肯定那人不会是道格拉斯。

From her knowledge of Douglas's habits, she feels sure that that person can't have been Douglas.

《柯林斯英汉双解大词典》

That great deal of specificity implies that heat is also path-dependent and again we have the convention that if heat is added to the system, the quantity is greater than zero.

热也是与路径有关的,根据通常的习惯,如果我们对系统加热，其符号取为正。

麻省理工公开课 - 热力学与动力学课程节选