4周搞定2000+托福核心词
observatory = ob(表加强) + serv(保持) + atory(场所) = 天文台
obsession = ob(表加强) + sess(坐) + ion(表名词) = 一直坐→着魔，萦绕
sustaining = sus(下，底) + tain(拿住) + ing(形容词) = 自立的
attain = at(加强) + tain(拿住) = 拿住了→获得
稳稳拿住→拿到,获得
obtain
常考释义
The fungal hyphae are able to absorb phosphorus that plant roots could not themselves obtain from the very dilute soil solutions, and fungal hyphae can transfer mineral nutrients from one forest plant to another.
真菌菌丝能够吸收植物根本不能从极稀土壤溶液中获得的磷，而且可以将矿物营养物从一种森林植物转移到另一种。
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