另两个为胸腺嘧啶和胞嘧啶, 即称为嘧啶的单环结构.The other two, thymine and cytosine, are single ring structures called pyrimidines.蕨类植物和针叶树的木质部仅含有管胞.The xylem of ferns and conifers contains only tracheids.胞质流还仅仅是一种解释真菌中转移的假说.Streaming is still...
Entry to this prize draw is limited to UK residents.这次抽奖只限英国公民参加。Out of the original 23,000 applications, 16,000 candidates meet the entry requirements.最初的2.3万份申请中有1.6万份满足入选的要求。Any entry arriving after the closing date w...
We must supersede old machines by new ones.我们必须以新机器取代旧机器。The use of robots will someday supersede manual labor.机器人的使用有一天会取代人力.We must supersede old machines by [ with ] new ones.我们必须以新机器取代旧机器....
Maybe I'll go to hydroponics afterward and run through the sprinklers.也许我会去水耕然后经过洒水车.That is akin to installing sprinklers after the house has burned down.这种做法类似于房子烧毁后再安装洒水装置.Something swooshed and six sprinklers se...
Sheep's milk is produced in much the same way as goat's milk.绵羊奶和山羊奶的生产过程差不多。Some boys are always playing the giddy goat, behaving foolishly.有些男孩子常常胡闹, 举止荒唐.The young goat was just beginning to grow horns.这只小山羊...