It's a cooler. 是个冷藏箱
it is several degrees cooler. 温度都要低上几度
Sounds travel further in the cooler air 声音在冷空气中传的更远一些
It's a cooler time to travel. 夜间行路比较凉爽
to get at the cooler ground beneath. 贴近下面较冷的地面
The blue areas on the body are the cooler parts. 身上蓝色的部分是较冷的部位
In cooler climes, mud, laid down in estuaries, 在较冷的地区 沉积在入海口的泥沙