夏爐冬扇 (haa6 lou4 dung1 sin3) — describes wasted and ineffective efforts when doing things not according to the needs; literally: stove in summer and fan in winter in Cantonese
haaˍ₆夏louˎ₄爐dungˉ¹冬sin˗₃扇简 夏炉冬扇
Mandarin Pinyin: xia4 lu2 dong1 shan4
Meaning of 夏爐冬扇
noundescribes wasted and ineffective efforts when doing things not according to the needs; literally: stove in summer and fan in winter