Definition: used to mean always or every time Level: B1
如果水被加热到100摄氏度，它会变成蒸汽。
___If water is heated to 100°C it turns to steam.
如果我没有得到足够的睡眠，我会头痛。
___If I don't get enough sleep I get a headache.
如果有世界杯——比如足球——那么我会花更多时间看电视。
___If there is a world cup - e.g. football - then I spend more time watching television.
