标题: seen在该句中是怎么用的？ [打印本页] 作者: wininghe 时间: 11-12-8 20:13 标题: seen在该句中是怎么用的？ It is important to note that negative effects seen when taking active substances, reported as drug side effects, can often be at least partly attributed to a a combination of effects from the substance’s constituents (specifics), and those from nocebo effects (non-specifics).