The 70-year-old man does not have a slightest notion of what "clone" means.
Harry Potter's aunt and uncle often said that Potter's head was full of odd notions.
The former option favours the married man.
It is at your option to stay or leave.
a. 稀有的，罕见的，冷僻的；珍奇的，出类拔萃的； （空气等）稀薄的；（肉）煎得嫩的
A collector of rare insects will show us some of his latest discoveries.
The air is quite rare on the top of Everest.
The cat felt curious when she saw her own reflection in the mirror.
After long reflection we decided to buy the house.
The little that I have seen of the new colleague's work is satisfactory.
That little boy is too superficial to appreciate great literature like this.
The superficial color of the wall has disappeared.
We sympathized with our classmate whose mother was very ill.
How can this woman sympathize with her husband's foolish opinions?
The treaty was the result of long negotiation.
vt. 承担，着手做 vi. 同意，答应，保证
The well-known lawyer undertook the case without a fee.
Snow is an unusual sight in this warm place.
According to the witness, the murderer has a nose of unusual size.
The soldiers violated the church by using it as a stable.
This doctor was condemned for violating medical ethics.
n. （常pl. ）工资，报酬 vt. 开始，进行
I can hardly exist on the wage I'm getting;there is no money for luxuries.
The government has pledged itself to wage a war against poverty and disease.