VOA慢速英语:Changing Gene in Plant Could Yield More Crops

短语讲解：

1. “We want to be able to predict if you do this to the clock, you will do this to crop yield.”

be able to 能够
例句：We shall not be able to furnish additional copies.
我们将不能提供额外的副本。

2. Mr. McClung says the gene also affects how the plant deals with extreme cold and high levels of salt.

deal with 处理
例句：I have a huge pile of letters to deal with.
我有一大堆信件要处理。