幸福的家庭不过是提前的天堂。
遗传密码是一组规则,通过这些规则,遗传物质(DNA或RNA序列)中的信息被活细胞翻译成蛋白质(氨基酸序列)。
The past is always tense, the future perfect.
天下武功,唯快不破。
In teaching history, there should be extensive discussion of personalities who benefited mankind through independence of character and judgement.