Macrodemography
總體人口統計學
??? 情景例句
I'm glad I ran into you. Where have you been hiding lately?
我很高興碰見你，你躲到哪里去了？
What do you do in your spare time?
空閑時間你干什么？
'This service has been suspended.'
“此趟列車暫停運行。”