关于ascertain的百科

• ascertain造句怎么写

• Howdoyouascertainwhatatextmeans?Aclosewatchisbeingkeptontheradiationlevelstoascertainthestatusofcontainment.Metricsareanaspectoftheabilitytoascertainprojectstatus.Anautopsywasneededtoascertainthecauseofhisdeath.Sheandhercolleagueswerealsoabletoascert...
• 2017-05-0327182