adj.看不见的；被遮住视线的；未装瞄准器的
He bought a car unsight, unseen. 他看也不看就把汽车买下了.
In doubles, during the delivery of service (Law 9.2, 9.3), the partners may take up any positions within their respective courts, which do not unsight the opposing server or receiver. （双打的发球过程中（第9.
"If a line judge is unsighted and the umpire is unable to make a decision, it shall be a "let"." 如果司线员未看清.
where an appointed official is unsighted, carry out that official’s duties or play a ‘let’; （当某个指定的官员未看清时，执行该官员的职责，或提出“重发”；）
“That is understandable with the pace of the modern game and being unsighted, but this is just basic law. “因为现代足球的节奏太快，这是可以理解的。但这是足球比赛的基本规则。
