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...
尼罗河在此处变宽，从两块花岗岩巨石间穿过。Here the Nile broadens out between the huge granite boulders.阿斯旺水坝有助于控制埃及的尼罗河.The Aswan Dam helps to control the River Nile in Egypt.探险者在中非找到了尼罗河的几处源头.Explorers traced the Nile River to its several h...
The villagers took fertility symbols into the fields to ensure a good harvest.农民们把丰产象征物拿到田里以确保好收成。There are obvious differences between clones with regard to their self - fertility.自交能孕性在不同的无性系中是明显不同的.Blackland element w...
I was flabbergasted at the violence of the thunder.猛烈的雷声使我大吃一惊.Saying that Joan was taken aback is to put it mildly. She was completely flabbergasted.说琼吃了一惊,这是很保守的说法. 她其实是完全惊呆了.Fourth Master Liu was even more flabbergast...
Yes , sir , trapped into frittering his life away playing nursemaid to a lot of garlic? eaters.是的, 被困在这儿虚度光阴,充当保姆侍候 一大 帮吃大蒜的人.We must avoid frittering away our resources on untenable positions.我们应避免在难以守住的据点上消耗我们的实力.The f...
the lion's tawny mane狮子的黄褐色鬃毛She had tawny hair.她有一头黄褐色的头发。...a large, tawny dog.黄褐色的大狗tawny mane黄褐色棕毛the tawny fur of this animal动物的黄褐色毛皮Her black hair springs in fine strands across her tawny, ruddy cheek.她的一头乌发分披...