impearl的一般过去时怎么写？

vt.使形成珍珠状，用珍珠装饰...

impearl的第三人称单数（三单）为：impearls...

impearl的现在进行时为：impearling...

impearl的现在完成时为：impearled...

impearl的音标：impearl的英式发音音标为：[ɪm'pɜ:l]impearl的美式发音音标为：[ɪm'pɜl]...

shalt的音标：shalt的英式发音音标为：[ʃælt]shalt的美式发音音标为：[ʃælt]...

n.（粗磨）玉米粉，其他谷物磨的粉，（燕）麦片...

downwards的音标：downwards的英式发音音标为：['daʊnwədz]downwards的美式发音音标为：['daʊnwərdz]...

报告的结论是，无须作任何重大变更。The report concluded that no substantive changes were necessary.我把变更的地址通知了邮局.I notified the post office that my address had changed.他们变更了部署,并接到命令开火.They regrouped and were ordered to open fire....

“绝缘体”的英语可以翻译为：dielectric，insulator，[计] isolater，nonconductor ...

n.阿米巴，变形虫adj.变形虫的...

cognize的音标：cognize的英式发音音标为：[kɒg'naɪz]cognize的美式发音音标为：['kɒgˌnaɪz]...

chloropropene的音标：chloropropene的英式发音音标为：[klɔ:rə'prəʊpi:n]chloropropene的美式发音音标为：[klɔrə'proʊpin]...

colonize的现在进行时为：colonizing...

“抉”的英语可以翻译为：[书] （剔出； 剜出） pick out，single out ...

“厌食”的英语可以翻译为：apocleisis，asitia，anorexia，bdelygmia，off one's feed ...

n.委员会...

Her old car was unreliable, so the trip was plagued by breakdowns.她的旧车老不听使唤，一路上总是出故障。How do we prevent these continual breakdowns?我们如何防止这些一再出现的故障?Its log shows several recent breakdowns.航海日志上写有好几处新近发生的故障....

n.茅草枯（除草剂的一种），达拉朋...

On the foreign exchanges, the US dollar is up point forty-five.在外汇交易中，美元上涨了0.45个百分点。There've been some bitter exchanges between the two groups.两组之间发生过一些激烈的争吵。The euro fell on the foreign exchanges yesterday.欧元汇价昨天下跌...