be complicated by

基本解释

Colds, however, can be complicated by bacterial infections. In such cases, antibiotic treatment may be indicated.
感冒，无论如何可并发细菌感染。在这种情况下，可以表明抗生素治疗。
Estimating the marine impacts will also be complicated by the fact that closing the fisheries has given stocks a respite from nets and hooks.
禁渔让这里鱼类保有量得以从鱼网和鱼钩中获得喘息的机会，而这也使得评估漏油对海洋的影响变得复杂起来。
Placement of an anteroposterior lag screw can also be complicated by screw traffic if there are a large number of screws fixing the primary fracture.
如果对骨折进行大量前后位固定的话，螺钉的位置安置也是问题。

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