They have maintained a close association with a college in the US.
他们和美国一所学院保持了密切联系。
The US study was presented to the American Association for Cancer Research annual meeting.
该研究发现是在美国肿瘤研究协会的年度会议上提出的。
The US study was presented to the American Association for Cancer Research annual meeting.
该研究发现是在美国肿瘤研究协会的年度会议上提出的。
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