20．天气预报可以保护人类及他们的家园。 汉译英

20．天气预报可以保护人类及他们的家园。
The weather forecast can protect humans and their homeland.
21．一位著名的科学家今天下午将给我们讲话。
A famous scientist will give us a speech this afternoon.

20. The Weather Forecast can protect people and their family.

21. A famous scientist will talk with us this afternoon.

Weather forecast can protect Human Beings and their home.

A famous scientist is going to give us a speech this afternoon.