Sphingolipase
神经鞘脂酶
🗣️ 情景例句
Oh, wait a minute. What's today's date?
噢， 等一等 ，今天几号？
But wouldn't you like to spend an extra day or two here?
你们不愿意在北京多待一天吗？
I have just heard from my sister, Mary.
我刚收到我妹妹玛丽的一封信。