struggle to do sth 努力做某事
struggle against 挣扎着反抗
struggle for survival 为生存而斗争
struggle with something 与...作斗争
struggle for independence 为独立而奋斗
A: Why did you struggle so much with the math homework?
A：为什么你做数学作业时那么吃력？
B: I just couldn't understand the last part.
B：我就是看不懂最后那一部分。
1) 努力奋斗或挣扎
2) 费力地做某事
3) 斗争或抗争
1. 奋斗，斗争
2. 费力，吃力
verb
1. to make a forceful or violent effort to get free or to overcome a difficulty
Synonym: fight, strive