If, by any chance, any thieves should come, be sure to bark!
如果，万一有贼来，一定要叫！
2
The hypotheses about Leos' intestines and Sagittarians' arms were less than 5% likely to have come about bychance, satisfying the usual standards of proof of a relationship.
有关狮子座的肠胃与射手座的胳膊偶尔受损的可能低于5%，因此假说符合效应关系成立的一般标准。
3
As the years went by he was to be found seldom in the ways of men. He could be tempted to come out of his house only by a game of chess or the chance of an argumont.