assistance
n [U] (fml 文) help 帮助; 援助; 帮忙
Please call if you require assistance. 如果需要帮忙, 请打电话.
Can I be of any assistance, sir? 我能帮点儿忙吗, 先生?
Despite his cries no one came to his assistance. 尽管他大声喊叫, 却没有人来帮助他.
I can´t move this piano without assistance. 没有人帮忙, 我可挪不动这架钢琴.