Ejf
abbr. estimated junction frequency 估计结频率
🗣️ 情景例句
Thanks for your help.
谢谢你的帮助。
He has a headache and needs aspirin.
他头痛，需要阿斯匹林。
A week later, the editor at last received a fax from the journalist.
一周之后，编辑终于接到记者的传真。