彼女は服をさっと着た。

she; her; her; girlfriend; sweetheart

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

clothes (esp. Western clothes); counter for doses of medicine, gulps of tea, drags of a cigarette, etc.

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

quickly (esp. actions); suddenly (esp. wind, rain, etc.)

to wear (in modern Japanese, from the shoulders down); to put on; to bear (guilt, etc.)