中英释义：
双语例句
它们并非无用的摆设，也绝非仅仅是有趣的研究对象。
They are not ornaments. They are not just interesting things to study.
重点词汇
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无用的
futile; useless; unserviceable; unnecessary; rotten; unavail; unavailable; chaffy
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研究
study; research; dig; investigate; follow; pursue; trace; work; explore; delve into; look into; do research on; look at; read up on; exploration; -ics