我们将脑素和大分子蛋白质从化学上结合起来,把它注射给豚鼠或兔.We inject guinea pigs or rabbits with enkephalins that are chemically coupled to large proteins.在豚鼠中,硫酸致死性至少为二氧化硫致死性的一百倍.H 2 SO 4 is at least 100 times as lethal as SO 2 in guinea pigs.南美洲豚...
She instilled in the children the virtues of good hard work, and making the best of what you have.她慢慢给孩子们灌输勤奋工作的品德，教导他们充分利用现有的条件。Nature has instilled in our minds an insatiable desire to see truth.自然给我们心灵注入了永无休止的发现真理的欲望....
A competition in which these sleds race against a clock.'逆'.''时针比赛这种雪橇''.'逆'. ''时针方向的比赛.Sleds pulled by dogs are in common use in the Arctic.狗拉的雪橇在北极地区很常用.Luge athletes r...
这是用来说明质量与能量的可互换性.It is used as an illustration of the interchangeability of mass and energy.断路器更换非常简单, 手车互换性好.The circuit breaker replacement is extremely simple, handcart interchangeability good.范围内提供更高的速度, 互换性和更长的寿命.Th...
门窗被风刮得乒乓山响.The doors and windows are rattling in the wind.北风刮得门窗乒乒乓乓山响.The doors and windows are rattling noisily in the north wind.让自由之声从 科罗拉多州 冰雪覆盖的落基山响起来!Let freedom ring from Alleghenies of Pennsylvania ! Let freedom...
China was the first country in the world to synthesize crystalline insulin, a bioactive protein.中国在世界上最早用人工方法合成一种有生物活力的蛋白质--结晶胰岛素.Microorganisms can produce many beneficial bioactive substances through secondary metaboli...
John Doe died in his bath, asphyxiated by the fumes from a gas water-heater.一名男子死于浴室中，死因是吸入燃气热水器中排出的气体导致窒息。The farmer bought a doe.那位农民买了头雌鹿.John Doe was appointed postmaster vice Richard Roe retired.约翰·多伊被任命为邮政局长,取代退休的理...