I love the fresh air, the scenery, the exercise, and the time to think.
我喜欢新鲜的空气、景致、运动以及有时间思考。
We exchange products under almost all circumstances.
在各种情形下我们都可更换产品。
Our knowledge of the oceans a hundred years ago was confined to the two-dimensional shape of the sea surface and the hazards of navigation presented by the irregularities in depth of the shallow water close to the land.