及物动词
1. Don't complicate life for me!
不要为我把生活搞复杂了！
2. The child's existence complicated matters considerably.
这个小阿子的存在使问题大为复杂。
3. His disease was complicated by pneumonia.
他的病因并发肺炎而加重。
不及物动词
1. The problems grew, multiplied, and complicated beyond all reason.
这些问题发展了，增多了，而且复杂化了，简直不可思议。