Postmill
单柱风车
🗣️ 情景例句
Do you live on or off campus?
你住在校内还是校外？
Let me treat you.
让我请客。
it is extremely difficult to estimate the true value of the services which people perform for us.
但要估算别人为我们为所提供的服务的价值却是极其困难的。