visibility 能见度;可见性
massive 大量的;可观的
approximately 近似;大约
CET4阅读单词短语考点:
Early models often failed to withstand crashes, however, so in 1965 the box was completely redesigned and moved to the back of the plane - the area least affected by impact-from its original position in the landing wells .
早期的黑匣子经常在飞机坠毁时受损,因此1956年,黑匣子被彻底重新设计,安装部位由原来的起落架舱转移到飞机的尾部最不易遭受撞击的区域。
本句中,须注意饲组failed to意思是失败;未能完成,以及subject to意思是遭受,为四级常见考点。
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