| 例句 |
You can pre-empt pain by taking a painkiller at the first warning sign.刚出现征兆时，就服用止痛片来预防疼痛。Headaches can be an early warning sign of raised blood pressure.头疼有可能是血压升高的早期示警信号。Falling prices may be a warning sign of a recession. 价格持续下跌或许是经济萧条的先兆。The red light is a warning sign for stop.红灯是警告停止行进的信号。Red marks on the skin may be a warning sign for this disease.皮肤上出现红色斑点可能是患这种病的一个警示信号。 |