How about two forms

形式───form;两种───two types

He attached a cheque to the order form.───他在定货单上附了一张支票.

Hydrogen combines chemically with oxygen to form water.───氢和氧化合成为水.

She handed over a form, then bobbed down again behind a typewriter.───她递过来一张表格，随后又立刻埋头在打字机后面忙活起来。

Swimming is probably the best form of exercise you can get.───游泳或许是现有的最佳锻炼方式。

Canals and rivers form the inland waterways of a country.───运河和江河构成了一个国家的内河水路.

Children should form good habits from the very beginning.───孩子们从一开始就应养成良好的习惯.

Marijuana is a common form of the drug.───大麻是麻醉品中普通的一种.

Gambling is a form of entertainment.───赌博是一种娱乐形式。