1.She is not usually good at table tennis; that winning stroke was a fluke.
"她平时乒乓球打得并不好,一击抽球不过是侥幸而已。"
2.4 Turbellarians are monoecious with the reproductive systems adapted for internal fertilization. And the monogenetic flukes (class Monogenea) are mostly ectoparasites of fishes.
涡虫是雌雄同体，生殖系统适于体内受精。起源吸虫（殖纲）大多是鱼外寄生虫。
3.Ever wonder if that whiskery fellow walking his jowly Scottish terrier or that leggy, long-haired blonde jogging with her Afghan hound were just flukes?
一击抽球不过是侥幸而已。"
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兰梗，或者
