a bout of [illness]
She suffered a severe bout of pneumonia.
她患了严重的肺炎。
比赛；较量；（乐器琴身的）凸弧；鼓起部分；(尤指痛苦或不快的)一段时间,如疾病。；一场拳击比赛。；一场计分的击剑交锋。
A period of something, especially something unpleasant such as an illness.
(尤指痛苦或不快的)一段时间,如疾病。
A period of something, especially one painful or unpleasant, like an illness.
一场拳击比赛。
A boxing match.
一场计分的击剑交锋。
An assault (a fencing encounter) at which the score is kept.
一场轮滑德比比赛。
A roller derby match.
一场格斗比赛。
A fighting competition.
乐器上凸起或加宽的部分,如吉他两个特有的凸起之一。
A bulge or widening in a musical instrument, such as either of the two characteristic bulges of a guitar.
After a long bout of the flu, he finally felt well enough to go back to work.
经过长时间的流感发作，他终于感觉好得可以回去工作了。
用法提示：bout 在此表示疾病的一次发作，为可数名词。
The champion won the bout in the third round with a knockout.
冠军在第三回合以击倒赢得了这场比赛。
用法提示：bout 在此表示拳击比赛中的一次较量，为可数名词。
The two teams are preparing for a tough bout in the finals.
两支队伍正在为决赛中的激烈较量做准备。
用法提示：bout 在此表示一次竞争或较量，为可数名词。
She suffered a severe bout of pneumonia.
她患了严重的肺炎。
The boxer lost his bout with the reigning champion.
这位拳击手输掉了与卫冕冠军的较量。
grammar · medium
易错句子He had a bout the flu.
正确表达He had a bout of the flu.
汉语中‘发作’后直接跟疾病名称，但英语中bout后需加介词of表示‘一阵（疾病）’。
grammar · medium
易错句子They bouted in the ring last night.
正确表达They had a bout in the ring last night.
bout是名词，不能用作动词。汉语‘较量’可作动词，但英语需用have a bout或类似结构。
针对'bout'的'发作'义，指疾病症状减轻或消失的时期
针对'bout'的'较量、回合'义，指战斗或竞争的停止
bout指突然发作，spell指持续一段时间
bout指整场比赛，round指其中的一个回合
疾病的发作
He suffered a severe bout of illness last winter.
去年冬天他患了一场重病。
一次流感
She's recovering from a bout of flu.
她正在从一轮流感中恢复。
拳击比赛
The boxing bout lasted 12 rounds.
这场拳击比赛持续了12个回合。
冠军赛
He prepared for the title bout for months.
他为冠军赛准备了数月。
一场病
She recovered from a bout of illness last winter.
她去年冬天从一场病中康复了。
一阵抑郁
He went through a bout of depression after losing his job.
他失业后经历了一阵抑郁。
一阵哭泣
The child had a bout of crying when his toy broke.
孩子的玩具坏了，他哭了一阵。
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY, WORDNET.