人们认为描述性语法的语法专家们不在意标准，因为他们认为所有语言用法都同样有效。
Descriptive grammarians have been presented as people who do not care about standards, because of the way they see all forms of usage as equally valid.
非洲人现在同样热衷于亚洲药物：青蒿素，一种从中国灌木中提取的、非常有效的治疗疟疾的药物。
Africans are now just as keen on Asian medicine: artemisinin, a highly effective malaria remedy derived from a Chinese shrub.
许多天文学家使用射电望远镜进行太空实验，这些望远镜在白天也同样有效。
Many astronomers use radio telescopes for space experiments, which work just as well during the daylight hours.
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