fatigability的意思？

fatigability的音标：fatigability的英式发音音标为：[fætɪgə'bɪlətɪ]fatigability的美式发音音标为：[fætɪgə'bɪlətɪ]...

At this time , the gastrointestinal manifestations, together with extreme weakness and fatigability, are the major symptoms.复发时, 胃肠道症状, 同时伴有极度虚弱和乏力, 为主要临床表现....