A single archesporium differentiates immediately below the nucellar epidermis, it functions directly the megaspore mother cell.孢原细胞处于珠心表皮之下, 直接起大孢子母细胞的功能.Megaspore tetrad is linear. The chalazal megaspore develops into a...
Toolbelts free both hands and lessen the risk of dropping hammers.工具腰带解放了双手，还减少了锤子掉落的风险。He felt hot tears dropping onto his fingers.他感觉到热泪掉到他的手指上。Burning embers started dropping from the ceiling.余火未尽的木块开始从天花板上往下掉。...
Again and again passages in his essays exasperate or bewilder.他的文章里使人忿然或困惑的章节屡见不鲜.He had begun to exasperate her at last.他终于把她激怒了.He shouted in an exasperate voice.他以愤怒的声音嚷着....
She penned a short memo to his private secretary.她给他的私人秘书写了一份简短的备忘录。The entire memo took up all of two pages.整个备忘录写了满满两页纸。This memo could be the smoking gun that investigators have been looking for.这份备忘录可能是调查人员一直在寻找的证据。...