search mode的用法和样例：
例句
- Some options and interfaces vary between search engines but most of the basic ideas for searching them are the same.
有些选项和界面可能会因搜索引擎的不同而不同，但大多数基本的搜索方式都是相同的。 - This model simulated biologic behavior rule, and could rest on the environment to adopt the defined region search or the wide area search to sweep rubbish.
该模型模拟生物的行为规律，能够依据周围环境采取限定区域搜索或者广域搜索方式清扫垃圾。
