roughen的一般过去时怎么写

roughen的现在进行时为：roughening...

roughen的第三人称单数（三单）为：roughens...

roughen的音标：roughen的英式发音音标为：['rʌfn]roughen的美式发音音标为：['rʌfən]...

vt.& vi.（使）变得粗糙，（使）变得不平...

roughen的现在完成时为：roughened...

What has roughen'ed your temper?可什么东西惹恼了你了?Roughen the surface before applying the paint.先把表面弄毛糙再涂颜料.You'd better roughen the surface before applying the paint.你最好先把表面弄毛糙再涂颜料....

regenerative的音标：regenerative的英式发音音标为：[rɪ'dʒenərətɪv]regenerative的美式发音音标为：[rɪ'dʒɛnəˌretɪv, -ərətɪv]...

该图书馆藏有大量可供参考的原始资料.The library has quantities of reference sources.你可以查查书,寻找一些可以参考的图片.You could look in some books to find pictures to copy.她一定用心阅读所有供孕妇参考的最新文章.She must be reading all the latest literature on motherhood....

“花丝”的英语可以翻译为：[植] filament，capillament，thrum，[工美] filigree ...

v.权力下放，将（权力等）自中央政府转到地方政府( decentralize的第三人称单数 )，将（工业、工人等）自集中点分散到较大的区域内...

The PVDF - HFP ( poly vinylidene fluoride - hexafluoropropylene ) porous membrane polymer battery was prepared by a phase inversion process.采用倒相法制备PVDF-HFP ( 聚偏氟乙烯 - 六氟丙烯 ) 多孔薄膜....

This cookery book have being wrote by a real epicure.这本食谱是由一位真正的美食家写的.Each nibble was eaten with the air of an epicure.每小块食物都吃得津津有味的样子.This cookery book has been written by a real epicure.这本食谱是由一位真正的美食家写的。...

v.除去（感染），给…消毒( disinfect的第三人称单数 )...

breakwaters的音标：...

“赦免”的拼音为：shè miǎn...

“心痛”的英语可以翻译为：cardialgia，cardiodynia，cardiac [epigastric] pain，heartache，heartburn ...

adj.不锈的，不会脏的，无污点的，未被玷污的...

literalize的现在进行时为：literalizing...

inert的音标：inert的英式发音音标为：[ɪ'nɜ:t]inert的美式发音音标为：[ɪ'nɜrt]...

“车夫”的拼音为：chē fū...

大纹鱼科...