Foods are broken down in the digestive tract.食物在消化道里分解。Too rich a diet will disorder his digestive.太油腻的饮食会使他的消化系统变得紊乱.Instruments developed at the hospital allow doctors to thread microscopic telescopes into the digestiv...
Guaranteeing the safety of students requires continued vigilance on the part of teachers.要确保学生安全,教师得时常保持警惕.China has all along attached importance to guaranteeing the various rights and interests of the disabled.中国一贯重视残疾...
The opposite would be anti - existence, as the opposite of matter is antimatter.存在的对立面应该是 反 存在, 正如物质的对立面是反物质一样.Antimatter has been produced experimentally, but little of it is found in nature.反物质已在实验室中产生, 但还未在自然界中找到.I to...