give leg bail的用法和樣例：
例句
用作不及物動詞 (vi.)
- He was arrested for bribery, but he gave leg bail.
他因賄賂而被捕，但他又逃走了。 - She tried to give a positive image but somehow, thinking of the crushed green beads on the Jewellers floor, it was hard not to imagine that her luck had run out with the raiders.
她盡量地表現得積極一點，可是不知怎麼的，只要一想到珠寶店地板上被碾壓的綠珠子，她就感到自己的好運已經隨劫匪一起逃走了，這個念頭纏繞著她，難以打消。
