a股账户可以买港股吗:有哪位英语高手可以赐教:"as"的所有用法.谢谢!!!

as
[As]
adv.
同样地, 被看作, 象
prep.
当做
conj.
与...一样, 当...之时, 象, 因为
[域] American Samoa, 东萨摩亚
abbr.
[军] Air to Surface, 空对地

as 1
[Ez, Az]
adv.
同样；相同
He runs fast, but I run just as fast.
他跑得快，但我跑得同样快。
被看作；被认为是
man as described by scientists
科学家所描述的人类

as
conj.
（用于比较）与…一样
He can run as fast as I can.
他能跑得和我一样快。
She works in the same building as my sister.
她和我的妹妹在同一大楼上班。
This is the same as it was before.
这个与以前一样。
诸如
such animals as cats and dogs
诸如猫、狗之类的动物
当；正值
He dropped the glass as he stood up.
他站起来时，把杯子摔了。

as is
按现状（出售），概不保证（维修）
as it were
或者说
He is my best friend, my second self, as it were.
他是我最好的朋友，或者说，是第二个我。
as of right
依照法律
as yet
迄今，到目前为止

as
pron.
正如，照
as you know
正如你知道的
就…而言
He's quite good, as boys go.
就男孩儿而言，他相当不错了。
as
prep.
像…
（指处于某种状态、 性质、情况、工作等之中）
He works as a driver.
他以开汽车为业。
The kitten uses that box as a bed.
小猫把那盒子当作床。

as if
好像，好似
She spoke to me as if she knew me.
她和我说话的神情，好像她早就认识我似的。
(= as though)
as long as
只要
You may borrow this book as long as you promise to give it back.
只要你答应归还，你就可以把这书借走。
(= so long as)
as of
自从；自…起
as of today
从今天起
(= as from)
as oppesed to
与…不同；与…相反
as though
好像，好似
as to
关于；至于
I don't know anything as to the others.
至于其他，我一无所知。

as 2
[Ez, Az]
n.
阿斯（古罗马铜币）

as
[As]
n.
(pl. asses [5Asiz])阿斯
古罗马铜币
古罗马重量单位