这一门亲事 meaning in English

this marriage

From what she had said of her resolution to prevent their marriage , it occurred to elizabeth that she must meditate an application to her nephew ; and how he might take a similar representation of the evils attached to a connection with her , she dared not pronounce
她说她坚决要阻档这一门亲事，从这些话看来，伊丽莎白想到夫人准会去找她的姨侄至于达西是不是也同样认为跟她结婚有那么多害处，那她就不敢说了。