小于

【计】 less-than

1. 一年级新生小于十八岁或大于十九岁是相当特殊的。
   It is quite unusual for a freshman to be younger than eighteen or older than nineteen.
2. 负数的有关或表示一个小于零的数的
   Relating to or designating a quantity less than zero.
3. 2号铁头球棒铁制高尔夫球棒，其高击斜面大于发球球棒小于3号铁头球棒，用于击中远球和长距离球；2号铁头球棒
   An iron golf club that has more loft than a driver and less than a three iron, used for medium fairway shots and long approach shots; a two iron.

小的英语翻译：

于的英语翻译：