“试验者”造句
小儿从肩上抛球,抛至了天外的
试验者手中就可记分.
Child must throw ball overhand 3 feet to witnin arm's reach of tester.
无因不良反应退出
试验者.
There was no exit of enrollees due to adverse reaction.
这位
试验者将20毫升的酸液吸入吸量管中.
The experimenter sucked up 20 cc of acid into a pipette.