n.诸侯；封臣；附庸；属国
adj.隶属的；奴仆的
The vassal swore that he would be loyal to the king forever. 这位封臣宣誓他将永远忠诚于国王。
Nothing is holy when our city is another land's vassal! 当我们的城市沦为其它城市附庸的时候
用作形容词 (adj.)Wales was a vassal kingdom at that time. 那时威尔士是个附庸国。
n.家臣身份；隶属；侍从
