Since Tom Lee is our sole agent for our products in Korea, we can't make you a direct offer.
因为汤姆·李是我方产品在韩国的独家代理人,所以我们不能直接向您发盘。
and we have only to turn to that extraordinary discovery of echo-location in bats to see a case in which the voice plays a strictly utilitarian role.
我们只要看一看蝙蝠回声定位这一极不寻常的发现,就可以探究一下声音在什么情况下有绝对的实用价值。