短语词组短语at the pains 翻译;下苦功夫be at the pains 尽力设法grinning at my pains 你在讥笑我的悲苦was at the pains of 刻苦am at the pains of 刻苦were at the pains of 刻苦be at the pains of 煞费苦心Heart at pains 用心良苦is at pains 努力 返回 at pains