Cellopentose
纤维五糖
🗣️ 情景例句
I'm having trouble eating.
我吃东西时有困难。
The doctor said I looked worried and nervous.
医生说我看起来太忧郁和紧张了。
All the Indins over the age of 8 had to carry their permits at all times.
所有8岁以上的印度人无论什么时候都得携带许可证。