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求助, OG(11) 9, 19, 24
9. sunspots, vortices of gas associated with strong electromagnetic activity, are visible as dark spots on the surface of the sun but have never been sighted on the sun's poles or equator. 这里划线部分 spots 是动词?
19. in virtually all types of tissue in every animal species, dioxin induces the production of enzymes that are the organism's trying to metabolize, or render harmless, the chemical that is irritating it. 从that 开始死活没看懂。。
24. for members of the seventeenth-century ashanti nation in africa, animal-hide shields with wooden frames were essential items of military equipment, a method to protect warriors against enemy arrows and spears. 一直纠结划线部分是protecting 还是 to protect? 感觉可以是一种影响,也可以是一种目的啊。。 |
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