to herbicides and talk about weed killers for the moment.

我们来聊聊除草剂
I may have mentioned before that Monsanto--

我可能曾提到过
and I talked about herbicide as being one of their major products

除草剂是孟山都公司的主打产品
--they make a weed killer called Round Up.

它生产一种叫"围捕"的除草剂
A lot of you have probably used this around the house,

你们中的大部分人可能
where you spray it on plants and kills the weeds.

在房子附近用它来除过草
Round Up is sold to consumers like us,

我们这类人是"围捕"的客户
but its biggest application is used in farms.

但其最大的用途却是应用于农场
You can imagine how weeds growing around plants interfere

你们可以想象杂草如何在庄稼间疯长
--compete for resources with the plants,

它们和庄稼争夺养分
and therefore farmers have to worry a lot about these.

因此农夫们不得不为此担忧
If you have some agent that you can spray on the weeds

如果你有除草剂能杀灭这些杂草