firsthand
['fɜ:st'hænd]
adj.& adv.
（得自）直接来源的[地];
第一手的[地];
亲身;
原始;
例句:
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School trips give children firsthand experience not available in the classroom.
学校组织的出游能让孩子们获得在课堂上得不到的亲身体验。
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We gather up from various sources a great amount of firsthand data.
我们从各种来源收集了大量第一手资料.
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I heard her news firsthand.
我直接从她本人那里听到她的消息.
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I needed to experience what was happening firsthand.
来自SA
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Would we let the scientist learn that critical fact firsthand?
来自WSJ
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I know about the steep upfront costs firsthand.
来自WSJ