Cucurbituril is a macrocyclic cavitand compound with two portals.葫芦脲是一种具有大环空腔、两端开口的葫芦状分子.All these novel macrocyclic compounds were confirmed with elemental analysis, IR, 1 HNMR and MS.这些新型大环化合物均经元素分析 、 IR 、 1HNMR、MS等证实其...
然而在那之后, 建造者的工作做得一直不错.Since then, though, the builders have done a fine job.这个镇附近的急流给运河建造者带来了麻烦.The rapids near this town bring difficulties for canal makers.建造者将那条路加长了3英里.The builders extended the road for three more mil...
Wickedness does not go altogether unrequited.[谚]恶有恶报.She fell in an unrequited love with the artist.她单恋那位艺术家。At any rate, my love for Rachel remained unrequited.总之, 我对雷切尔的爱一直是单恋....
The newest wrinkle in the $ 2.5 billion cosmetics business is a lotion that camouflages creases.二十五亿化妆品生意中最新的一招是一种能够掩饰皱纹的润肤液.A lot of cottons and silks are cool but they wrinkle easily.很多纯棉和丝绸都很凉快,就是很容易起皱.The skin on her...
It can also be worn inside the wetsuit allowing easy entry.它也可以穿在湿衣里面,这样可以使湿衣更易穿着.Although I rarely feel I need to a wetsuit for warmth.然而我很少感到自己需要湿式保暖衣来保暖.Watersports enthusiasts should consider hiring a wetsuit as well...
我们现在撇开美洲这个对偶制家庭的典型地区不谈吧.We now leave America, the classic soil of the pairing family.对偶体彼此相连于称为着丝粒的缩小的区域.The duplicates are attached to each other at a constricted region called the centromere.考察了加料顺序和相转移催化剂对偶联反应的影响.The ...
为了防止蜜蜂迷路，养蜂人给它们喝糖水。To keep their bees from wandering, beekeepers feed them sugar solutions.黑压压的一大群蜜蜂从蜂巢中飞出来。A dark cloud of bees comes swarming out of the hive.蜜蜂之间所用的交流方式是昆虫中最为复杂的方式之一。Honeybees use one of the most sophi...