禾木科草和三叶草播种深度应为 12-20 毫米.Grass and clover seed should be sown at a depth of 12 - 20 mm.例句梅花看上去有点像三叶草的图案.The Club looks a little like a leaf clover design.如果这样的话, 那三片叶子的三叶草会是什么 呢 ?If that's so, then what of the three ...
In specific acid catalysis, the undissociated acids do not contribute.在特殊的酸催化中, 不离解的酸不起作用.The corresponding reaction of acetaldehyde is subject to general base catalysis.乙醛相应的反应服从广义的碱催化.Catalysis has increased the rate o...
"He went back to the lab", Iris exclaimed impatiently.“他回实验室去了，”艾里斯不耐烦地大声说。People have been waiting impatiently for a chance to improve the situation.人们一直在焦急地等待使形势出现转机的机会。"Come on, David," Harry said impatiently.“戴维，快点!”...
在花园里挖土的最好工具是铁锹.The best implement for digging a garden is a spade.她到处走, 又挖土,又锄草.She went from place to place, and dug and weeded.他的手掌因干挖土的活儿而磨破了皮.His palms were excoriated by the hard labor of shoveling....