The counselors will gladly baby-sit during their free time.空闲时这些顾问也会乐意照看一下孩子。They are expected to baby-sit, run errands, and help serve at cocktail parties.要求他们做的事情有：看孩子、跑腿儿、在鸡尾酒会上帮忙招待。Could you baby - sit for us on Frid...
德国啤酒传统上只用4种原料——啤酒花、麦芽、酵母和水。German beer has traditionally been made from just four ingredients — hops, malt, yeast and water.啤酒花有两种基本类型: 苦型和香型酒花.Beer hops has two basic types: bitter hops and aroma hops.啤酒花的短缺仅是问题的冰山一角.Th...
What is refreshing is the author's easy, conversational style.让人耳目一新的是作者轻松自如的会话式写作风格。Herbs have been used for centuries to make refreshing drinks.草药用于调制提神饮品已有好几个世纪了。It's refreshing to hear somebody speaking com...
他用木楔子取代钉子制作家具。He builds furniture using wooden pegs instead of nails.他用锤子把楔子砸入石缝里。He hammered the wedge into the crack in the stone.这扇窗户关不严,得用楔子上了.The window doesn't stay closed unless you wedge it....
杂原子数越多, 分子被氧化的程度越高.The larger the number of heteroatoms, the more highly oxidized the molecule.关键反应为底物控制的不对称杂原子共轭加成反应.The key step was a substrate controlled asymmetric heteroatom conjugated addition.杂原子烯反应是该反应的重要组成部分.Th...