imply和implicate有何区别？

implicate 有牵连的意思

如：Alexander was implicated in the robbery.

亚历山大与那宗抢劫案有牵连。

imply是暗示的意思，有点隐喻的意思

如：Their failure to reply to our letter seems to imply a lack of interest.

他们没有回我们的信似乎暗示他们缺乏兴趣。