Lfl
abbr. 线性荧光灯；下燃烧限度
🗣️ 情景例句
How long does it take you to get through a letter?
你写一封信要花多少时间？
It was quite good. But it was awfully long.
班机很好，就是时间太长了。
Now Alfred began a long series of skirmishes -- and within a month the Danes had surrendered.
这时，阿尔弗雷德发起一连串小规模的进攻，结果不出一个月，丹麦人就投降了。