Your friend would not understand _____ you are going through.
What 引导的宾语从句 扩展:what 引导的其他名词性从句,一起到连接词或引导词的作用;二,在从句中充当一定的成分,主语、宾语、表语、定语。 We should make use of spare time to study. — What use should be made of spare time to study? — You should know _____ use should be made of spare time to study.
what
what