Uldpe
[化] 超低密度聚乙烯
🗣️ 情景例句
Alexandra came by.
Alexandra来了。
Do you think the doctor could see me tomorrow before 9:30?
你看医生在明天9:30前能给我看病吗？
Mainframe computers were very large indeed, often occupying whole air-conditioned rooms,
计算机主机确实很大，常常占据了装有空调的多间房间，