Mesectoblast
中外胚层, 外中胚层
🗣️ 情景例句
Do you have any better suggestions?
你有更好的提议吗？
The bus is bigger than other cars, but too crowded.
巴士虽然比小汽车大，但是太拥挤了。
It's up to you to decide.
这主要取决于你。