姐姐: older sister...
争论: to argue, to debate, to contend, argument, contention, controversy, debate...
礼尚往来: proper behavior is based on reciprocity (idiom), to return politeness for politeness...
泻: to flow out swiftly, to flood, a torrent, diarrhea, laxative...
昼夜: day and night, period of 24 hours, continuously, without stop...
极力: to make a supreme effort, at all costs...
沮丧: dispirited, dejected, dismayed...
汽油: gasoline...
遮挡: to shelter, to shelter from...
吹: to blow, to play a wind instrument, to blast, to puff, to boast, to brag, to end in failure, to fall through...
