Conclusion The symptoms of primary cardiac tumor are diverse and complex, and echocardiography, CT, MRI are instrumental for a definite early diagnosis.

结论原发性心脏肿瘤临床表现复杂多样，超声心动图、CT、MRI等检查是早期明确诊断的重要手段。

youdao

The instrumental-emotional relationship is the primary relationship type during the societal transition in the rural areas;

工具情感关系是农村社会转型时期的主导关系类型；

youdao

Those same wiretaps have been instrumental in leading to further arrests, including the arrest of Don Chu, a consultant at Primary Global Research, on securities fraud and conspiracy charges.

FORBES: The Galleon Net Widens -- Insider Trading or Witch Hunt?