test online的用法和样例：
例句
- Cable testing instruments measure crosstalk by applying a test signal to one wire pair.
缆线测试仪器以加上测试讯号到一对线来测量串音。 - With respect to adding initiatives, the staff wisely focused most of its effort on the customers that had responded most positively in the online testing, the nonprofits.
至于加强主动性方面，员工们很明智地将注意力集中在那些对在线测试回应最为积极的客户，即非营利组织上。
