memorialize的现在完成时为：memorialized...

embrittle的现在完成时为：embrittled...

chirk的现在完成时为：chirked...

thump的现在完成时为：thumped...

slow down的现在完成时为：slowed down...

subcontract的现在完成时为：subcontracted...

zero的现在完成时为：zeroed...

fuzz的现在完成时为：fuzzed...

hybridize的现在完成时为：hybridized...

fast的现在完成时为：fasted...

tower的现在完成时为：towered...

repay的现在完成时为：repaid...

firewall的现在完成时为：firewalled...

spouse的现在完成时为：spoused...

abrade的现在完成时为：abraded...

prorogue的现在完成时为：prorogued...

dictate的现在完成时为：dictated...

drown的现在完成时为：drowned...

gin的现在完成时为：ginned...

lie的现在完成时为：lain...

acidulate的现在完成时为：acidulated...

master的现在完成时为：mastered...

straddle的现在完成时为：straddled...

fruit的现在完成时为：fruited...

溴化氢加成的最后一步,是负离子亲核试剂的附加.The addition of hydrogen bromide involves the attachment of an anionic nucleophile in the final step.关于加成的定向问题,可以一直追溯到自由基化学的起源.The problem of orientation of addition goes right back to the beginnin...

“成熟度”的英语可以翻译为：[地质] grade of maturity，ripeness，maturity ...

lobby的现在完成时为：lobbied...

trammel的现在完成时为：trammeled...

他有理由沾沾自喜，因为他是40个候选人里仅有的7名成功者之一。He had reason to be pleased with himself, since he was one of only seven out of forty candidates who were successful.成功者与失败者的区别在于成功者能够学以致用。The difference between successful and unsuccessful...

cull的现在完成时为：culled...