It's grown into the best selling line of commercial jets in history.

它已经发展成为历史上最畅销的商用飞机系列。

Thomas is going to be selling his product line or group of products under his own brand or label.

Thomas 打算以自己的品牌或标签销售他的产品线或产品组。

Since the first twin jet Baby Boeing was introduced in 1967, it's grown into the best selling line of commercial jets in history.

自1967年发布首款双引擎喷气式飞机Baby波音以来，737系列已经成为商用喷气式飞机史上最畅销的型号。

Six months ago, he was selling a line of cell phones that was all the rage, and customers were beating down his door to get one.

六个月前，他销售的手机系列风靡一时， 顾客纷纷上门购买。