be at a loss what to do; be at one's wit's end; 不知所措
be seized with panic; be frightened out of one's wits 惊慌失措
raise funds 筹措款项
If you find sth. difficult to learn, do not give up. 学之弗能,弗措也。
牛津高阶第八版
美国韦氏词典
Dictionary.com
Free Dictionary
维基百科 (自由的百科全书)