Question

for one thing ……for another用法

for another 放在句末，还是在for another 后加第二个原因

Answer 1

for one thing是第一个原因，for another 是第二个原因，比如：
i hate talking with him. For one thing, he is far too pretentious and for another, he likes to flirt with any girl he encounters

Answer 2

for one thing 一方面，首先besides/for another (thing)另一方面，还有．．．

for one thing．．besides/for another (thing)常一起使用，表示相一致的两个方面．

如果要表示相矛盾的两个方面，常用on one hand...on the other hand(一方面．．．另一方面）

应该在for another 后加第二个原因

Answer 3

在for another 后加第二个原因
例如：
For one thing I don't have any interest in that movie; for another, I have no time.