zero conditional: If + pres simple, pres simple, facts, things that are always true, if you heat water, it boils, 1st conditional: if + pres simple, will+infinitive, possible situation in the future, if you come to the party, we'll have fun, 2nd conditional: if + past simple, would +infinitive, hypothetical or improbable situations, if I had a lot of money, I'd buy a Ferrari,

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?