ascertain的一般过去时怎么拼写？

ascertain的音标：ascertain的英式发音音标为：[ˌæsə'teɪn]ascertain的美式发音音标为：[ˌæsər'teɪn]...

ascertain的现在进行时为：ascertaining...

vt.弄清，确定，查明...

ascertain的近义词/同义词有：clear, find, determine, up, out, solve, learn, discover, find, appraise, learn, answer, out, up, clear, solve。vt.ascertain的近义词（确定;探查）：clear, find, determine, up, out, solve, learn, discover。ascertain的近...

ascertain的第三人称单数（三单）为：ascertains...

ascertain的近义词有：discover, find, detect, ascertain。下面这些动词均有"发现"的含义：discover：普通用词，指发现本来存在，但示被认识的事物、真理或情况。find：普通用词，可指偶然发现，也可指经过寻找后得到或重新获得已失去的东西。强调动作的结果。detect：正式用词，强调经过周密观察或研究而有所获得和发现，尤指发现有意隐藏之物。 ascertain：较正式用词，指有意搜寻与发现。...

It can be difficult to ascertain the facts.可能难以查明事实真相。We must ascertain the responsibility in light of different situtations.我们必须根据不同情况判定责任.The legal philosopher's concern is to ascertain the true nature of all the ...

It can be difficult to ascertain the facts.可能难以查明事实真相。I'm going to ascertain the truth.我要查明真相.It's difficult to ascertain the coal deposits.煤储量很难探明....

ascertain的现在完成时为：ascertained...

n.金盏花（marigold的复数形式）...

“友善”的拼音为：yǒu shàn...

She loved the gracefully high ceiling, with its white-painted cornice.她喜欢这里高高的天花板，它造型优美，还带有一圈漆成白色的飞檐。Though it rained yesterday, the cornice is still dripping water.尽管昨天下雨，檐口现在仍在滴水。To supply , decorate, or finish with o...

stitch的音标：stitch的英式发音音标为：[stɪtʃ]stitch的美式发音音标为：[stɪtʃ]...

Korea的音标：Korea的英式发音音标为：[kə'rɪə]Korea的美式发音音标为：[kə'rɪr]...

dusking的音标：...

“花岗岩”的拼音为：huā gāng yán...

n.手车，手推车...

“疏浚”的近义词/同义词：疏通。...

真棒恙螨属...

“充实”的反义词：空虚, 贫乏, 单薄, 空洞, 削弱, 充满。...

Arabist的音标：...

n.大型超市...

determination的近义词/同义词有：solution, adjudication, conclusion, arbitration, decision, arbitrament, adjudgment, wherefore, reason, ground, intentionality, purpose, motive, rationale, intention, ascertainment, confirmation, fi...

在硫酸盐电解液中,采用脉冲电源电沉积了镍钴合金.Ni - Co alloys were deposited by applying current pulses from a sulfate electrolyte.锂离子蓄电池电解液及其添加剂的研究日益受到研究者的重视.Great importance is attached to the lithium - ion rechargeable battery electrolyte a...