[ rúguǒ ] if; in case; in the event of; supposing that 短语和例子 如果这样 were this to happen ...; 如果不是他的话,我们就迷路了。 if it weren't for him, we would have gone astray. 如果她来的话,告诉我一声。 in case she comes, let me know. 如果空气中没有水汽,就没有露水。 if it were not for the vapour in the air, there would be no dew. 如果必要,我们可用铝代钢。 if necessary, we can use aluminium instead of steel. 我们如果不加强学习, 就会跟不上形势。 we can't keep abreast of the developing situation unless we study harder. 这些实验的目的就是探索这两种现象之间的联系,如果存在着任何联系的话。 the object of these experiments was to find the connection, if any, between the two phenomena. 如果我队获胜, 我们将庆祝一番。 in the event (that) our team wins, there will be a celebration. 如果着火, 就按警铃。 in the event of fire, ring the alarm-bell