When one company helps another company sell its things. They might put the second company’s ads next to their own, show its products in their shop, or mention it in the same TV spot. The two names on the poster are not the same firm — that is the whole idea: we help them sell, and they often help us too.

When one company一家公司 helps another company幫另一家公司 sell its things賣它的東西。They他們 might可能 put the second company’s ads把對方的廣告 next to their own放在自家廣告旁邊、 show its products in their shop在自家店裡陳列對方的產品， or mention it或提到對方 in the same TV spot在同一支電視廣告裡。The two names on the poster海報上的兩個名字 are not the same firm不是同一家公司 — that is the whole idea這正是重點： we我們 help them sell幫他們賣， and they often而他們常常 help us too也幫我們

You hear this in offices, marketing, and shops that share space, not at the dinner table.

You你 in offices, marketing, and shops that share space會在辦公室、行銷圈和共用空間的店家 hear this聽到這個說法， not at the dinner table不會在餐桌上

Though actually, many business people also say “cross-selling” when the SAME company tries to sell you a second thing after you already bought the first — a bank sells you a card, then tries to sell you insurance. That is a different use. The meaning here is the partner one: Company A helping Company B.

Though actually不過其實， many business people很多商業人士 when當 the SAME company同一家公司 after you already bought the first在你買了第一樣之後 tries to sell you a second thing想再賣你第二樣的時候， also say “cross-selling”也說 cross-selling — a bank銀行 sells you a card賣你一張卡， then tries to sell you insurance然後想再賣你保險。That那 is a different use是另一種用法。The meaning here這裡講的意思 is the partner one是夥伴的那一種： Company A helping Company BA 公司幫 B 公司