单词	black sigatoka
释义	black sigatoka noun : a serious leaf spot disease of bananas caused by an ascomycetous fungus (Mycosphaerella fijiensis) and marked initially by small, dark brown streaks on the lower surface of the leaf Banana researchers recently discovered black sigatoka, a disease that attacks banana leaves, on local crops. Ryan Maldonado, Miami Herald, 7 Jan. 1999 The plants have been genetically modified to resist black sigatoka, a leaf spot disease caused by the fungus Mycosphaerella fijiensis. Anne Dauwers, Nature, 28 June 2007 also : the causative fungus Another dark shadow is black sigatoka, a fungus that turns banana leaves black and blocks photosynthesis. David Grimm, Science, 14 Dec. 2008 Word History First Known Use 1980, in the meaning defined above
随便看	practice what one preaches practice-taught practice-teach practice-teaching practiced practiced eye practicedness practicer practicers practices practician practicians practicing practick practics practicum practicums practise practised practiser practisers practises practising practitioner practitioners

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