1.(in what way)(用于间接疑问句)怎样, 如何
I don't want to know how he died.我不想知道他是怎么死的。
I didn't know how to tell you.我不知道该怎么对你说。
2.(introducing a fact)(引入事实)以…的方式(或状态、方法)
It's amazing how people collect so much stuff over the years.人们居然在这些年里收集到如此多的东西, 这真是令人感到不可思议。
I remember how Grandma loved to cook.我记得祖母非常喜欢做饭。
3.<非正式>(in whatever way)随便怎样
It's your life, so live it how you want!这是你的生活, 想怎么过就怎么过吧！
4.as how<非标准>(that)(引导宾语从句, 相当于that)
He told me as how the shop was closed.他告诉我商店关门了。