原因复数用英语怎么说

His complex anger flamed afresh , and Ruth was in terror of him.───他的无名火又冒上来了, 罗丝见他真害怕.

the complex structure of the human brain───错综复杂的人脑构造

Justice is part of the complex machinery of the law.───正义是复杂的法律机器的一部分.

In this company you have to go through complex bureaucratic procedures just to get a new pencil.───在这个公司里即使是领一支新铅笔,也必须通过繁琐的手续.

What he said was too complex for me to understand.───他说的太复杂了,我无法了解.

He was an unusually complex man.───他是个异常复杂的人。