In my experience a straight substitution of carob for chocolate doesn'twork.根据我的经验，用角豆制品直接代替巧克力行不通。We use saccharin in substitution for sugar.我们用糖精代替糖.Substitution, No.3 for No.4.换人,4号下, 3号上....
Most direct substitution of groups bound to an aromatic nucleus is limited to diazonium salts.大多数连于芳核能被直接取代的基团仅限于重氮盐.Severe steric effects at the reactive carbon would impede the substitution.大的立体效应阻止在碳上的取代.We use saccha...
We shall have to trim our spending down to fit out income.我们得削减开支,量入为出.Construction and fit - out work entered its most intensive phase during the year.年内,建造工程及装修工程进入顶峰期....
这枚胸针的历史可以追溯到公元前4世纪。The brooch dates back to the fourth century BC.当他们拿着注射针走近我时，我的呼吸急速加快。I hyperventilate when they come near me with the needle.她母亲数了数编织针上的针数。Her mother counted the stitches on her knitting needles....
他傲慢无礼地朝元先生冲过来，面露怒容。He came insolently towards Mr. Won, his features set in a scowl.“哦，我们很乐意！”南希面露喜色，大声说道。"Oh, we'd love to!" cried Nancy, her face brightening.他们匆匆地走来走去，一言不发，面露焦急之色。They hurried about in dead silence...
He stared at the whorls and lines of her fingertips.他盯着她指尖的涡纹和流纹。Ritter took his left hand and inked the fingertips.里特伸出左手，在指尖上沾上印油。Can you reach your toes with your fingertips?你能用手指尖碰到你的脚趾吗？...