Definition: used to say what the situation will be if something does not happen Level: A2
我希望在那里见到你，但如果没有，我会给你打电话。
I hope to see you there but, ___if ___not, I'll call you.
画画时穿上旧衣服；如果没有，它们可能会被弄脏。
Wear old clothes when painting; ___if ___not, they might get stained.
为考试努力学习，如果没有，你可能会不及格。
Study hard for the test, ___if ___not, you might fail.
