1、likewise 和 similarly 同样地， 相同地基本上没有区别。

2、also 则有不同意思和用法：also 副词 还，亦，也，而且Tom has been to Canada. Harry has also been to Canada. 汤姆去过加拿大。

3、哈里也去过。

4、★在口语中，多用 as well 或 too; 在否定句中，则用 either.连接词 = and. She was noble, also beautiful. 她很高尚，而且长得美。

5、not only . but also .不但…并且…。