Cfr
abbr. 运费在内条件（Cost and Freight）；未来研究中心（Center for Future Research）
🗣️ 情景例句
How much are the dues?
会费多少？
Whom do you want to call?
你要打电话给谁？
'Why are you doing that?' Sally asked.
“你为什么要那样做呢？”萨莉问。