Ulf
n. 超低频
🗣️ 情景例句
How long will this letter take to get there?
这封信需要多长时间到那儿？
In for a penny, in for a pound.
一不做，二不休。
When he went outside half an hour later, he was astonished to find the little black lamb was almost white.
半小时后，当他从屋里出来时，他惊奇地发现小黑羔羊全身几乎都变成白色。