n.沼泽地排水沟
Why don't you leam something else? 你干嘛不学点别的?
Leam from the mistakes of others. 从别人那儿吸取失误的教训吧，
Where did you leam to speak English? 你从哪里学会说英语的？
Son: Dad ,is French diffieult to leam? （儿子：爸爸，法语难学吗？）
Boys and girls leam better in single sex schools. 男、女生在单性别的学校里学习更好些。
