Phycoxandin
蓝溪藻黄素甲
🗣️ 情景例句
But a simple solution might be
但是， 一个简单的解决办法可能是
It is easy to open a shop but hard to keep it always open.
开设店铺易，维持常开难。
Suppose it rains,what shall we do?
万一下雨，我们该怎么办？