水由氧元素和氢元素组成。

The water is formed from oxygen element and hydrogen element.

youdao

水是由氢元素和氧元素组成的。

Water is composed of the elements hydrogen and oxygen.

youdao

水是由氢元素和氧元素组成的。

The water is formed from oxygen element and hydrogen element.

youdao

水由氧元素和氢元素组成。

Water is composed of the elements hydrogen and oxygen.

youdao

水由氧元素和氢元素组成。

Water is composed of the elements hydrogen and oxygen.

youdao