8. called for

(1) 找某人；来（去）取某物
I will call for you at your house on my way to New York.
Shall we send the goods, or will you call for them?

(2) 要求；号召
The old man's death is strange, calling for an inquiry.
The newspaper called for a severe punishment of those who have involved in the commotion.

(3) 需要采取行动；要求有
Such success calls for much hard work.
Such a great scheme calls for a lot of money.
The work calls for endurance and patience.

9. effective

(1) producing intended result 效果好的；得力的；有效的
You must promise to spend the money in the most effective way.
What he did is very effective.

(2) operative 有效；生效
The agreement will become effective from the first day next month.
His order to arrest me is no longer effective.

10. means

(1) method producing a result 手段；方法
They hope to achieve this goal by peaceful means.
Taking a plane is the quickest means of getting there.

(2) wealth财产；资产
He is a person without any means of support.
Only a man of means can afford a house that big.
by all means 无论如何；一定；想尽一切办法
You must get there by all means before the sunset.
By all means try this medicine if you want to recover very quickly.
by means of 用……；依靠；凭借
The water is carried by means of a pipe.
Thoughts are expressed by means of words.
beyond one's means 超过某人的经济能力
The young man is living beyond his means.
A private car is beyond my means.
by no means 完全不；一点不
By no means should he be left alone at home.
I am by no means an out-and-out modern, as they say.

11. negotiate

(1) vi. 谈判；协商
They have been negotiating for almost two months.
We've decided to negotiate with our boss about our wages.

(2) vt. 就……进行谈判；商谈（某事）
The two countries have arrived at negotiating a formal agreement on the border question.
I need an experienced hand to negotiate these steps.