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
but this is too much!
但是这太令人难以置信了！
ON. It gets bright.
合上开关，它就会变亮。
Once the existence of this wave-length had been discovered,
一旦这种波长的实际存在被发现，