服用药性不强的镇定剂没有危险。

It's safe to take a mild sedative.

球迷对我们来说真的是一剂镇定剂，因为每晚体育馆都座无虚席。

Answer: The fans are definitely a plus because we have a sellout crowd every night.

几经波折终于到达医院，医生给男孩注射了镇定剂后，帮他做了截肢手术。

Then they reached the hospital. There, while the boy was sedated, the doctors cut off his legs.

大多数也门人消磨下午时光的时候，所嚼的能导致轻度兴奋的叶子咖塔（Qat），是种强力的镇定剂。

Qat, the mildly euphoria-inducing leaf that most Yemeni men while away their afternoons chewing, is one powerful pacifier.