pith的现在完成时怎么写？

the pith of her argument她论据的核心Using a sharp knife, cut away the pith and peel from both fruits.用一把锋利的刀削去两种水果的外皮和中果皮。Both the rubber and the pith ball are negatively charged.这时,橡胶棒和木髓球两者都带负电荷....

n.精力，（木）髓，（争论、思想等）核心，橙子等外皮之下的海绵层vt.杀死，使瘫痪，除去…中的髓...

pith的现在进行时为：pithing...

pith的第三人称单数（三单）为：piths...

pith的音标：pith的英式发音音标为：[pɪθ]pith的美式发音音标为：[pɪθ]...

pith的一般过去时为：pithed...

pith的复数形式为：piths...

Birth later period, cauline stalk lignification, and the pith ministry inside the bine is formed hollow.生育后期, 茎秆木质化, 而茎内的髓部则形成空心.The pith of this stemlike stele appears rather strongly like collenchyma tissue.茎状中柱的髓显得颇强健...

After a minute or two I left them there jabbering away.没几分钟，我就走开了，留下他们在那儿叽里咕噜地说个不停。What is he jabbering about now?他在叽里咕噜地说什么呢？He was jabbering away in Russian.他叽里咕噜地说着俄语....

“字形”的拼音为：zì xíng...

The potential impacts of deep sea mining on epipelagic ecosystem are here analysed and reviewed.根据现有试验规模及资料分析了深海采矿对上层海洋生态系统的潜在影响....

n.月经过多...

A top reggae singer gave a young fan the thrill of her life when he serenaded her.一名当红雷盖乐歌手对着一个年轻的歌迷唱了一首小夜曲，这让她感到了前所未有的激动与兴奋。Their music is a cross of reggae with hip hop.他们的音乐是雷鬼和嘻哈风格的组合....superb roots reggae by the li...

David said nothing, but simply nodded, as if understanding perfectly.戴维什么都没说,只是点点头,好像完全理解了."Are you okay?" I asked. She nodded and smiled.“你没事吧?”我问她.她点点头,笑了.Mitzi nodded a perfunctory acknowledgement as her glass was fil...

The photodegradation of the acid fuchsin wastewater using the heteropoly acid was studied.以杂多酸为催化剂,研究了酸性品红染料废水的光催化降解特性和工艺....

n.（摆姿势让人画像或拍照的）一次（时间）( sitting的名词复数 )，开会，入席，（饭店等）一批...

“善报”的英语可以翻译为：eward for good deeds ...

n.摆阔，讲排场，炫耀，卖弄...

血蛋白...

“附着胞”的英语可以翻译为：appressorium ...

vt.使受神经支配，促使（器官、肌肉等的）活动...

instil的一般过去时为：instilled...

seconding的音标：...