At this point esch chromosome consist of a pair of chromatids and the two associated chromosomes are termed a tetrad.此时每条染色体由一对染色单体构成,这两条联合的染色体称为四分体.Microspore abortion occurred after the tetrad formation.小孢子败育发生在四分体形成以后...
Megaspore tetrad is linear. The chalazal megaspore develops into an embryo sac of Polygonum type.大孢子四分体为线形, 合点端功能大孢子发育成为蓼型胚囊.The chalazal megaspore of a linear tetrad develops into a polygonum type sac.四分体线行排列,合点端的大孢子发育为...
I said two or three amusing things and Mr. Holder made a few infamous puns.我讲了两、三件有趣的小事,霍尔德先生说了几句不很高明的双关语.There are two kinds of puns, phonetic pun and semantic pun.双关语分为谐音双关和语义双关两类.Puns have been considered as one of th...
Classical music leaves me absolutely cold, but I love rock.古典音乐一点也引不起我的兴趣,我喜欢搖滾乐。It was an absolutely ridiculous decision.这是一个绝对荒谬的决定。I was absolutely outraged that I could be even mentioned in an article of this kind......
两支球队的水平都很高，节奏和速度都很快。Both teams played with a lot of quality, pace and tempo.他是球队的队长，但实际上却并未上场。He captained the team but he didn't actually play.这支球队的表现并不像最终比分所显示的那样糟糕。The team did not play as badly as the scoreline ...
显然，她是全家口才最好、最沉着冷静的人。She is clearly the most articulate and self-possessed member of her family.她被他那率直、富有鼓动性的口才迷住了。She was struck by his simple, spellbinding eloquence.有口才的人善于用词.An eloquent speaker is one skilled in the u...
当她批评他的工作时,他怒气冲冲地走掉了.He went off in a huff when she criticized his work.我就这样匆忙走掉了,很抱歉.I'm sorry to have to rush off like this.人们开始走掉.People began to move away....
The money to build the power station ought to have been sufficient.建设电站的资金本该足够了。I think you ought to give football a rest for a time.我认为你应该暂时停止踢足球。You know, we really ought to get another car.要知道，我们真的应该换一辆车了。...