Mouret and Bourdoncle crossed the cashier's office and the invoice room and when they passed into the third office the young men there, who were laughing and joking together, started with surprise.

Mouret和Bourdoncle穿过出纳室和发票室，进入第三间办公室时，那里正在谈笑风生的年轻人吓了一跳。