[词汇]（12）

believe v.相信，认为

may modal verb（用于请求许可）可以

how long多长

since prep.自从

why adv.为什么

sell v.卖，出售

because conj.因为

retire v.退休

cost v.花费

pound n.英镑

worth prep.值......钱

penny n.便士

★believe v. 相信，认为

I don't believe you.不相信某人说的话。

believe + (that)从句（宾语从句）

He failed again because he is very lazy.

believe of +短语

He failed again because of his laziness.

believe in sb.信任某人

We believe in each other.互相信任。

trust信任（侧重于信任某人的能力）

Don't trust the person who dare not look into your eyes.

belief n.（某人的）信仰，信条

We need to have strong belief in ourselves.

believable adj.可信的

unbelievable adj.不可信的

★sell v. 卖，出售

for sale待售

on sale打折

salesman推销员

salesmanager销售经理

★retire v. 退休

① v. 退休；离职

He's going to retire soon from the sea.不久他将退休，结束其航海生涯。

② v. 退出；退隐

He often retireds to his country house at weekends.

他周末通常到他那个乡间别墅生活。

The ladies retired, and the gentlemen went on drinking and chatting.

女士们离席退出，先生们则继续喝酒聊天。

★cost v. 花费（物体做主语）

The coat costs $30.

How much does this house cost?

★worth prep. 值......钱（物体的真正实际价值）

① prep. 相当于......价值，值......钱

How much is the necklace worth?

every penny of it一分钱一分货

This coat is worth every penny of it.

② prep. 具有......价值；值得

be worth doing值得......

The book is worth reading.

prove one's worth证明某人的价值

cost是指得到一件东西所花费的钱，其真正的价值可能低于或高于所要的价，这种价格主要是指商店内的标价或货主索要的价格。

worth主要是指某物的本身价值。