He has the habit of making notes on the margin while reading.他读书时有在页边空白处作注释的习惯。
The village is situated at the margin of a forest.村子位于森林的边缘。
He is on the margin of bare subsistence.他正处在挨饿的边缘。
We allowed a margin of 20 minutes in catching the train.我们有20分钟的余地赶火车。