Knottier
a. （指木材）多结节的( knotty的比较级 ); 多节瘤的; 困难的; 棘手的
🗣️ 情景例句
and how important it is for them to be paid attention to?
以及他们何等需要受人关怀吧？
I ran all the way to school, otherwise I'd have been late.
我一路跑到学校，不然就迟到了。
Learning English is like building a house.
学英语象盖房子。