Underclassification
降低货物等级
🗣️ 情景例句
Can you tell me what time you close?
您能告诉我关门的时间吗？
Only certain people are permitted to enter that club.
只有特定的人才被允许进入该俱乐部。
So it became known as the gold rush.
成为广大为人知的“淘金热”。