原句: Not since the beginning of the Industrial
Revolution have the prospects for technologies benefiting mankind been so
bright. 问题一:正确的语序是否应为:Since the beginning of the Industrial Revolution the
prospects for technologies benefiting mankind have not been so bright; ...
have difficulty in doing sth 在做某事方面有困难 We have difficulty in studying English. We should face difficulties. 请问:既然 difficulties 是可数名词,为什么 have difficulty in doing sth 中为什么不变成复数呢? 在 have difficulty in doing sth 中,difficulty 既...
The sheer scale of the investment it took to begin commercial expansion at sea reflects the immensity of the profits that such East-West trade could create.请问在这句话中sheer怎样翻译?是什么意思?