Cdna
[化] 互补DNA
🗣️ 情景例句
Sometimes, by buying something cheap now, you will be costing yourself more in the long run.
有时候你花了很少钱买了便宜货，但它日后可能要花掉更多的钱。
Fame like a river is narrowest at its source and broadest afar off.
名誉像条河，源头最狭窄，远处最宽阔。
It has to be tall because it is like a giant block and tackle,
井架必须很高，因为它像一个巨型滑轮组。