Nicotine is both a stimulant and a depressant, so that can make one feel quite imbalanced.

Nicotine is both a stimulant and a depressant, so that can make one feel quite imbalanced.

尼古丁既是一种兴奋剂，也是一种镇静剂，所以它会让人感到非常不平衡。

-- Christy Turlington 杜灵顿