To christen the new hall, a number of great orchestras have been invited to play.几个著名交响乐团受邀演出，以庆祝新音乐厅的启用。Let's have a drink to christen our new sherry glasses.让我们为使用我们新的雪利酒杯喝点儿酒....
The heavy traffic tinctures the air with carbon monoxide.繁忙的交通使空气里充满一氧化碳.The limit for carbon monoxide is 4.5 per cent of the exhaust gas.尾气中一氧化碳的排放限量为4.5%。Both nicotine and carbon monoxide inhaled with cigarette smoking...