下意识

She unconsciously moved back a pace or two.

她识地向后退了一两步。

Nail biting is often a subconscious reaction to tension.

咬指甲通常是紧张时识反映。

Early experiences can implant fears in the subconscious.

早年经历会识中埋入恐惧。

Almost by reflex, he helped himself to a drink.

几乎是识，自己弄了杯酒。