A dog will not howl if you beat him with a bone.要想狗不叫，必须有骨头The child set up a howl.这个孩子大哭起来。He gave a howl of pain.他发出一声痛苦的吼叫。African hyena noted for its distinctive howl.非洲鬣狗，以其特别的嚎叫而闻名。Envy assails the noblest, the win...
The hydroxyl groups can be changed into esters , ethers , acetals and ketals, etc.最常用的羟基保护基可归纳为三类:酯类 、 醚类和缩醛或缩酮类.Eight acetals ( Ketals ) were synthesized under the optimal conditions.在最佳条件下,合成了八个缩醛 ( 酮 ) 化合物.The yields ...
a paper cone full of popcorn装满爆玉米花的锥形纸筒I like to eat popcorn when I am watching TV play at home.当我在家观看电视剧时,喜欢吃爆米花.He still stood behind his cash register stuffing his mouth with popcorn.他仍站在收银机后，嘴里塞满了爆米花。...
...a sliced white loaf.一条切成片的白面包Mark the loaf with the prongs of a fork in a criss-cross pattern.用叉子尖在面包上划十字图案作标记...a loaf of bread...一条面包The cost of a loaf of bread has increased five-fold.一条面包的价钱增长了4倍。He uses his loaf ...
Using a sharp knife, cut away the pith and peel from both fruits...用一把锋利的刀削去两种水果的外皮和中果皮。Nicky shrank back; he couldn't bear sharp voices.尼克朝后退着, 他无法忍受尖刻的声音.I began to doze off and pulled myself up sharp.我开始迷迷糊糊睡去了,立...