She had become addicted to tranquillizers.

她吃镇静剂已经上瘾了。

Doctors are still at issue over the proper use of tranquillizers.

医生们对如何适当使用镇静剂的问题意见仍不一致.

Doctors are still at issue over the proper use of tranquillizers .

医生们对如何适当使用镇静剂的问题意见仍不一致。

He scribbled a prescription for tranquillizers.

他草草地开了张镇定剂药方。