Leadtime
n. 投产准备阶段；超前时间
🗣️ 情景例句
Well, you really saved the day for me, Alexandra.
你真的帮了我一个大忙， Alexandra。
The fire is the test of gold;adversity of strong man.
烈火试真金，困苦炼壮士。
The lake was not a natural one, but a man-made reservoir.
这不是一个天然湖泊，是一座人工修建的水库。