Dylene
聚苯乙烯
🗣️ 情景例句
I'm not sure I'm up to it.
我不能肯定我是否能做得来。
Children enter school at the age of five,don't they?
孩子们在5岁时入学吗？
Good morning, nurse.I was to see the dentist,please.
早上好，护士。我想见牙科医生。