1.
Yes, it is a first class express train.
是的，是头等快车。
2.
first ranking security
一等证券,头等证券
3.
first-class carriages, compartments, seats, etc
头等的车厢、 车室、 座位等.
4.
grind a knife, lens, etc on a stone, etc
在石头等上磨刀、 镜片等.
5.
care for the hair: the activity of washing or cutting or curling or arranging the hair.
护理头发的活动，包括洗头剪头等。
6.
It is an affair of the first magnitude.
这是头等重要的事情。
7.
This ticket does not entitle you to travel first class .
你这张票不能坐头等位。
8.
A decision of capital importance.
一个头等重要的决定
9.
a matter of the utmost concern
关系重大的事，头等大事
10.
Can I transfer to a first class coach?
我可以换到头等车厢吗?
11.
I wound up with a first prize.
我最后得到一份头等奖。
12.
Where's the first-class sleeper?
头等卧铺车厢在哪儿？
13.
He's been and won first prize!
他竟然获得了头等奖！
14.
It's a shirt that bangs the bush.
这是件头等的衬衣。
15.
first quarter
头等(光泽最纯)上弦日子
16.
Chivas Regal Blended Scotch
头等醇酿-苏格兰威士忌
17.
brandish a gun, a knife, an axe, etc
挥舞枪、 刀子、 斧头等
18.
a thermonuclear bomb,missile,warhead
热核炸弹、导弹、弹头等.