我先举个例子用英语怎么写

Let me give you an example

先───before;例子───example

This year's yield of wheat is higher than ever before.───今年小麦产量高于往年.

She'd never done Pilates before.───她以前从未做过普拉提。

The stew must be boiled up before serving.───炖肉必须煮熟才能上桌.

Be sure to bar all the doors before you leave.───在离开前,务必把所有的门都闩上.

The idea of flight had been kicking around for centuries before man actually achieved it.───在人们真正能上天飞行之前,飞行这种想法早已存在数百年了.

We should prevent others cashing in before we've time to market the product.───我们应该防止别人在我们没有来得及在市场上销售这产品之前大捞一笔.

A vast expanse of golden crops lay before us.───我们眼前展现出一大片金黄色的庄稼.

I had a medical checkup before going abroad.───我在出国前作了一次体格检查.