Queueing system
[计] 排队系统
🧩 词语组成解析
[计] 排队, 队列
🗣️ 情景例句
Oh! I just drop in on him for a chat.
哦，我只是顺便来和他聊聊天。
This is my second trip to the United States, and I really enjoy staying here.
这是我第二次美国之行，我很喜欢这里。
In 1990?
1990年呢？