Tetranucleotide
四核苷酸
🗣️ 情景例句
I've been thinking.
我一直在考虑。
The snow will soon be deep enough to ski on.
雪将会很快就积到可以滑的深度了。
Wu dropped his stick! He stopped to get it and of course fell behind.
吴的接力棒掉地了！他停下捡棒，当然就落后了。