副词在户外，在露天
ph.
1. It's cold out of doors.
外面很冷。
1. 在户外：out of debt 不欠债 | out of doors 在户外 | out of favour 失宠;不受欢迎
2. 户外：out-of-date 老式的 | out-of-doors 户外 | out-of-order 无序的
3. 在露天,在户外：out of date 过时的, 废弃的 | out of doors 在露天, 在户外 | out of one's mind 疯了
4. 在露天：out of date 过时 | out of doors 在露天 | out of order 出故障
1. 在户外；在露天
also out-of-doors. If you are out of doors, you are outside a building rather than inside it.
e.g. Sometimes we eat out of doors...
我们有时候在户外吃饭。
e.g. Don't you worry about them when they're out of doors?
他们在室外的时候，你不担心吗？