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
Well ...
那……
Discontent is the first step in progress.
不知足是前进中的第一步。
But we won't have our big family get-together until Christmas.
但我们要等到圣诞节才会有家庭大团圆。