核心句型：
Keep your fingers crossed.
祝你好運！
Keep your fingers crossed.直譯過來就是：“使你的手指保持交叉的狀態”，因為手指交叉會形成X形，與十字架的形狀特別相像。美國人信奉基督教，十字架是基督教耶穌救世的象征，他們認為十字架可以躲避厄運、帶來好運。所以這個短語的正確意思也就是：“祝你好運”。因此，當美國人說"Keep your fingers crossed."時，他/她要表達的意思就是:"Good luck to you."、"I wish you knocked on wood."、"Break a leg!"。
情景對白：
Terry: Oh my god. Ben, I'm going to negotiate with that ticklish client again.
泰瑞：噢，天哪！本，我又要去跟那個難對付的客戶談判了。
Benjamin: Keep your fingers crossed, my friend.
本杰明：祝你好運，朋友！
搭配句積累：
①I'll ask my boss for a day off to attend my son's graduation ceremony.
我準備請老板批準我一天假，去參加兒子的畢業典禮。
②I have a big client to deal with tomorrow.
明天我得與一個大客戶交涉。
③I'll negotiate with a foreigner this Wednesday.
這周三我得和一個外商談生意。
④I have to persuade the client to accept our offer.
我得說服客戶接受我們的報價。
單詞：
1. knock on wood 祈求好運
We should have the job finished by Thursday - knock on wood!
我們應該在星期四前完成這工作，但愿好運。
I'll have a test tomorrow. Knock on wood.
我明天有考試。上帝保佑！
2. break a leg 祝某人好運、大獲成功
I know you're going to be great in the play tonight. Break a leg!
我知道你今晚的演出會很順利的。祝你好運！
I just heard that your acting audition is today. I hope you get the part. Break a leg!
我剛聽說你的試鏡在今天，我希望你能得到那個角色，祝你好運！