习惯用语a fly in the ointment1.白璧之瑕; 美中不足特殊用法antidimming ointment1.抗朦软膏blue ointment1.水银蓝油膏burn ointment1.烧伤油膏citrine ointment1.柠檬色软膏; 硝酸汞软膏flower ointment1.花香软膏; 花香油膏petrol ointment1.石油软膏petrolatum ointment1.凡士林; 矿脂yellow-cross ointment1.防黄十字(气)软膏ointment of zinc oxide1.氧化锌软膏