collect/gather one's wits = wit. gather dust be neglected or unused for a long time
Related Translations:
长久: for a long time; permanently 短语和例子长久不忘的好记性 a long memory; 这不需要很长久 (时间)。 it will not take long. 他打算在这儿长久住下去。 he is thinking of living here permanently