。
She threw herself off the bridge and ended her life.
Literal
She [topic-は] bridge [from-から] body [object-を] threw, committed-suicide.
身を投げる ('to throw oneself, leap to one's death') is the standard set phrase for jumping off a bridge or cliff. The literal force is 'throw the body' — visceral imagery. The te-form 投げて chains causally into 自殺した. Suicide remains a serious public-health issue in Japan, where particular bridges and locations have historically been associated with suicide and where prevention efforts have included installing barriers and posting helpline information at known sites.