The tractor was resting against the crash barrier in the central reservation, having miraculously crossed the busy road with fast-flowing traffic.
拖拉机停靠在路中间预留地的防撞栏上，奇迹般地穿过了车流湍急的繁忙道路。
In the second stage the parasites cross the blood-brain barrier to infect the central nervous system.
在第二阶段，寄生虫穿过血脑屏障感染中枢神经系统。
Alternatively we could make a direct attack by sea against Japan's island barrier in the central and south Pacific.
另一种方案是，我们可以由海上直接攻打日本在太平洋中部和南部的岛屿堡垒。
At least 35% of corals in the northern and central parts of Australia's Great Barrier Reef have been destroyed by bleaching, Australian scientists say.
澳大利亚科学家表示，澳洲大堡礁北部和中部的珊瑚至少有35%已被珊瑚白化现象摧毁。
But it is difficult for exogenous gene to enter brain because of the presence of the blood-brain barrier (BBB). This is the main obstacle for gene transfer therapy in central nervous system.
但血脑屏障的存在却使外源性基因难以进入脑内，是中枢神经系统转基因治疗的主要障碍。
It is readily absorbed by the GI (gastrointestinal) tract, from where it freely crosses the blood-brain barrier. It acts mainly on the central nervous system by depressing the cough reflex.
福尔可定容易被人体胃肠道吸收，可以自由穿过血脑屏障，主要通过抑制中枢神经系统的咳嗽反射来发挥作用。
P-glycoprotein inhibitors can get drugs across the blood-brain barrier. It is of great importance to improve the blood concentration in brain and bioavailability of central nervous system drugs.
糖蛋白抑制剂可促进药物通过血脑屏障，对提高脑内药物的浓度和中枢神经系统药物的生物利用度具有重要意义。
In translation theory and practice, how to remove the barrier of culture background to transmit meaning from the original is one of the central issues to which people pay close attention.
在翻译理论和翻译实践中如何更好地破除文化背景的障碍，有效地传达原文的意义，这一直是人们关注的焦点之一。
In translation theory and practice, how to remove the barrier of culture background to transmit meaning from the original is one of the central issues to which people pay close attention.
在翻译理论和翻译实践中如何更好地破除文化背景的障碍，有效地传达原文的意义，这一直是人们关注的焦点之一。
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