10.【语言】(number)三数
11.to be on trial【律】在受审
He is currently on trial accused of serious drugs charges.他目前因被指控涉嫌严重毒品犯罪正在受审。
(be under assessment)在试用中；在测试中；在考察中
The President's credentials will be on trial.这位总统的资质会受到检验。
The 26-year old fullback has been on trial at the club for ten days.那位26 岁的后卫在该俱乐部试训了10天。
The robots have been on trial for the past year.这些机器人过去一年都在试用中。