Cdna
[化] 互补DNA
🗣️ 情景例句
I just want to confirm that the arrangements have been made.
我要确认所有计划都安排好了。
Have but few frieds,though many acquaintances.
结交可以多，朋友应宜少。
At a special swimming pool in Los Angeles, children become expert at holding their breath under water even before they can walk.
在洛杉矶的一个特设的游泳池里，孩子们甚至在还没有学会走路时就已经能熟练地在水下屏住呼吸了。