To leave or be discharged from military service离开军队
pass muster
be accepted as adequate or satisfactory被认为合格，被认为可以通得过
muster someone in (或 out)
(US)enrol someone into (or discharge someone from) military service(美)征召…入伍；令…退伍
柯林斯高阶英汉双解学习词典释义
VERB
聚集(支持力量);奋(力);集中(精力)
If you muster something such as support, strength, or energy, you gather as much of it as you can in order to do something.
例句
He travelled around West Africa trying to muster support for his movement...他在西非四处奔走，为自己的运动争取支持。Mustering all her strength, Nancy pulled hard on both oars.南希使出所有力气，用力划动双桨。
V-ERG
召集，集合(士兵)
When soldiers muster or are mustered, they gather together in one place in order to take part in a military action.
例句
The men mustered before their clan chiefs...男人们聚集在族长们面前。The general had mustered his troops north of the Hindu Kush.将军在兴都库什山脉以北集结军队。
PHRASE
合格;符合要求
If someone or something passes muster, they are good enough for the thing they are needed for.
例句
I could not pass muster in his language...我说不好他的语言。If it doesn't pass muster, a radio station could have its license challenged.如果不合要求，电台可能会被吊销执照。
英汉词典释义
n.
能通过检阅；可以接受； 还不错
I didn’t think Charlie’s parents would like me, but evidently I pass muster.我原以为查利的父母不会喜欢我，不过显然我被接受了。
vt. & vi.
集合, 召集, 集结（尤指部队）
The troops mustered on the square.部队已在广场上集合。
英英词典释义
Noun
1. a gathering of military personnel for duty;
"he was thrown in the brig for missing muster"
2. compulsory military service
Verb
1. gather or bring together;
"muster the courage to do something""she rallied her intellect""Summon all your courage"
2. call to duty, military service, jury duty, etc.