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(relative) length
advantages and disadvantages; pluses and minuses; strong and weak points; merits and demerits
理科の実験で棒の長短を比べて順番に並べ替えた。
I compared the lengths of the sticks and rearranged them.
この方法には長短があることを認識すべきだ。
We should recognize that this method has its pros and cons.
髪の長短は個人の好みによって大きく違う。
Hair length varies according to personal preference.