第一 的英文翻译

first

firstly

number one

primacy

primo

第一 的中文句子和英文句子

当海龟游过水族馆时，第一只海豚从上方猛扑下去，并用腹部撞击龟壳。

As the turtle swims across the oceanarium, the first porpoise swoops down from above and butts his shell with his belly.


很明显，冷冻机是一种物理系统，因此它不仅必须遵从第一定律（能量定恒），也必须遵从热力学的第二定律。

Clearly, a refrigerator, which is a physical system must obey not only the first law(energy conservation) but the second law of thermodynamics as well.


她溯尼罗河之源而上，直至遇上第一条鳄鱼。

She go up the Nile as far as the first crocodile.


把你名字的第一个字母写成大写。

Write your initials in capitals.


撇号置于右上角的符号，用以标明变量的第一个导数

A mark used as a superscript to indicate the first derivative of a variable.


他是第一个到达那里的。

He was the first to be there.


我能给你讲出第一百个不去的理由。

I could give you the hundredth reason for not going.


在1768年出现了第一部蒸汽机。

In1768 the first steam engine appeared.


他总把他人的利益放在第一位。

He always put the interests of others before his own.


第一级运载火箭是用来发射火箭的, 进入高层大气後即抛掉.

The first-stage vehicle is used to launch the rocket and is then jettisoned in the upper atmosphere.