seem as 和as if的用法有什么不同麻烦告诉我

seem as 和as if的用法有什么不同麻烦告诉我 seem as if 的用法 seem与look as if 用法区别 as though ,as if,seem,like做似乎讲的时候有什么区别 as though ,as if,seem,like做似乎讲的时候有什么区别 as if ,even if有什么区别和用法 as if,seem as区别 请问look as if与seem as if有什么不同? as if 的用法, as和as if有什么区别? As to 和 As for 的用法有什么区别? as if和as though有什么区别?具体用法有区别吗? 英语词组only if和as long as有什么区别?用法,含义 as if的含义和用法 as if的用法和相关例句? as if 和 if 有什么区别? it seems as if they know everything这个句子是不是有问题?在一本词汇书里看到的,seem和as if不是一个意思吗? as if,seem to区别