介绍:
1. expertise n.【U】专门知识或技能;专家鉴定；专家意见， special knowledge or ability,skill
Expertise in ……的专业技术或知识
Expertise in this aspect of the work is therefore essential.因此,必须具有这一方面的专业技能
He has the expertise in the management of hotels.他有酒店管理知识。
Undergraduate and graduate degrees in the relevant field of expertise.在相关专业领域具有本科和研究生学位。
expert at:擅长=be good at,do well in
expert on:关于...方面的专家，学术方面
expert in:熟练于...
2.premium加付款；赠品 a.高级的；售价高的n.额外费用；奖金；保险费
n.(商)溢价
adj.高价的；优质的
We will reimburse you (for) the additional premium.
对溢价我们会给予赔偿。
People are prepared to pay premium prices for quality products.
人们已经作好为优质产品花费更多的准备。
They have to pay life insurance premiums.
他们要支付人寿保险费。
If you buy two, you can get a premium of one, free.
如果你买两个，可以另外赠送一个。
at a premium紧缺的；稀缺的；难以得到的；溢价issue at a premium.
If space is at a premium, choose adaptable furniture that won't fill the room.
如果空间有限，就选择一些不会把房间占得很满的可改装家具。
正误判断
1.He was only too pleased to let them go.
他很乐意让他们走
Only（all, but ,never） too=very，rather，quite
I'll be only too pleased to help them out with any queries.
我非常乐意为他们答疑解惑。
she is all too ready to accept the job
2.It can’t be less interesting.
它不可能没有趣。（错）
它无聊极了
Not ,never之类的否定词雨形容词或副词的比较级连用，表示最高级。再没有比……更……的了。
I can’t agree with you anymore.
大家还在听
