他们最终来到一扇雕刻精美的对开门前。Eventually they reached a pair of ornately carved doors.她做了个扇风的动作，假装想让自己凉快一点。She made a fanning motion, pretending to cool herself off.当他们走近时，每扇门外都有一名卫兵肃身立正。Outside each door a guard sprang to attention...
典型的割草机发出的声响约为90分贝.The typical lawn mower makes about 90 decibels of noise.割高草时正需要你的大割草机.Your big lawn mower is just the job for the high grass.割草机布满了锈.The mower is covered with rust....
Instead of the government's piecemeal approach, what is needed is a radical shake-up of 16-19 education.需要的不是政府零敲碎打的措施，而是要对16至19岁年龄段的教育进行彻底变革。...piecemeal changes to the constitution.对宪法零星的修订a piecemeal approach to ...
在反应堆里,大分子裂变为小分子.Inside the reactor the large molecules are cracked into smaller molecules.大分子裂变为小分子.The large molecules are cracked into smaller molecules.裂化是使较重的低挥发性的碳氢化合物分裂成较小分子的化学分裂.Cracking involves the chemical brea...
硝酸离子有四个基频形式.The nitrate ion has four fundamental modes of vibration.对于基频振动来说, B ′-B″ 很小,因此谱线是几乎等距离的.For the fundamentals , B'- B " is very small and therefore the lines are almost equidistant.主要研究音节基频包络的聚类问题.In this...