A chemist can isolate the oxygen from the hydrogen in water.
A chemist can isolate the oxygen from the hydrogen in water.
一个化学家能把水中的氧和氢分解开。（其实我们也能做，就用电解水器就行了。）
A chemist can isolate the oxygen from the hydrogen in water.
一个化学家能把水中的氧和氢分解开。（其实我们也能做，就用电解水器就行了。）