grapple
/ˈgræpl; `ɡræpl/ v[I, Ipr]
~ (with sb/sth)
1 seize (an opponent) firmly and try to fight 扭住（对手）格斗; 扭打
She grappled with her assailant but he got away. 她与袭击者扭打而他却逃走了.
2 (fig 比喻) work hard to overcome (a difficulty) 努力克服（困难）
He has been grappling with the problem for a long time. 他长期以来一直努力解决该问题.