Cool这个词从何而来？它什么时候变得如此广泛使用？

Graduate from high school graduate high school Graduate from high school graduate high school没有区别。正确的语法是from high school但在谈话或口头语言，即使你忽略from ，你能理解一切。因此，仅从graduate high school ，就可以from两点入手。例子： I will be graduating high school soon. = I will be graduating from high school soon. （我即将从She graduated high school two years ago. = She graduated from high school two years ago. 。）例子： She graduated high school two years ago. = She graduated from high school two years ago. （她两年前从高中毕业。）