To spare no effort on the job would be to break a butterfly on the wheel.

A larva metamorphose into a chrysalis and then into a butterfly.

幼虫变为蛹,然後再变成蝴蝶.

The butterfly emerged from the pupa.

蝴蝶由蛹孵化而出.

A butterfly emerged in its full splendour a week later.

一周后蝴蝶破茧而出,绚丽夺目.

The caterpillar was transformed into a butterfly.

毛毛虫变成了蝴蝶.

She is a butterfly.

她是一个轻浮的人.

It is a very pretty butterfly, with a 2 inch wing span.

这是一只非常美丽的蝴蝶，翼展2英寸。

She wore butterfly glasses and had a beehive hairdo.

她戴着一副蝶形眼镜，顶着一头蜂窝式发型。

the metamorphosis of a caterpillar into a butterfly

从毛毛虫到蝴蝶的蜕变

The caterpillar will eventually metamorphose into a butterfly.

毛毛虫最终将蜕变成一只蝴蝶。

the life cycle of the butterfly

蝴蝶的生活周期

She's like a butterfly. She flits in and out of people's lives.

她像一只蝴蝶，每天在人前人后飞来飞去。

I am very good at swimming , for I can do butterfly stroke and backstroke.

而且能有的很好.我会蝶泳,仰泳.

Daniel: OK, Mom. Can I swim now? I want to learn butterfly stroke.

丹尼尔: 好的, 妈妈, 我现在能游了 吗 ?我想学蝶泳.

Verdant wave a wave swept through a wave of whipped butterfly, butterfly stroke, I will secretly.

嫩绿的波一浪吹过一浪,蝴蝶翻飞, 蝴蝶会偷偷的抚摸我.

The butterfly-stroke has got to be the hardest.

蝶泳一定是最难(游)的.

The butterfly-stroke makes me tired very quickly.

游蝶泳使我很快就觉得累了.

What are the elements of the butterfly stroke?

蝶泳的泳姿动作要领是 什么 ?

But she wants to learn butterfly stroke.

可她想学蝶泳.

She'll swim the races of breaststroke and butterfly stroke.

她将参加蛙泳和蝶泳的比赛.

You need to use your back muscles to swim the butterfly-stroke.

你必须用你背部的肌肉来游蝶泳.