四级Muscle performance can also be affected by a phenomenon called "central fatigue", in which an imbalance in the body's chemical messengers prevents the central nervous system from directing muscle movements effectively.
肌肉表现也会受到一种称为“中枢疲劳”的现象的影响,在这种现象中,身体化学信使的不平衡会阻止中枢神经系统有效地引导肌肉运动。
2017年6月四级真题(第三套)阅读 Section A
六级Surgeons may survive the robot invasion, but others at the hospital might not be so lucky, as iRobot, maker of the Roomba, a robot vacuum cleaner, has been showing off Ava, which could be used as a messenger in a hospital.
外科医生可能会在机器人入侵中幸存下来,但医院里的其他人可能就没那么幸运了,因为机器人吸尘器Roomba的制造商iRobot一直在炫耀Ava,它可以在医院里用作信使。
2012年12月英语六级真题
考研Fast-food eaters, news anchors, text messengers, all smiling, smiling, smiling.
快餐食客、新闻主播、短信信使,个个面带微笑。
2006年全国硕士研究生招生考试英语试题
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