Helen's choice of lipstick was a good match for her skin-tone.海伦选择的唇膏很适合她的肤色。"Helen had something to eat before she left," put in Cecil anxiously.“海伦走之前吃了点儿东西，”塞西尔急忙插了一句。Helen is also 25 and from Birmingham, but the...
未开采的石油储量untapped reserves of oil煤储量很难探明.It's difficult to ascertain the coal deposits.随着大型油井的枯竭，要想从北海的石油和天然气开采中盈利，必须着力于开采小储量的油井。To harvest oil and gas profitably from the North Sea, it must focus on the exploitation...