Wftu
abbr. 世界工会联合会（World Federation of Trade Unions）
🗣️ 情景例句
These files are highly confidential, please store them properly.
这些文件是高度机密的，请妥善保存。
I am very content with my life at present.
我很满足目前的生活。
How late do you plan to be?
你们预计延迟多久？