趣味青春英语电台 第310期:Rule of thumb

 Idiom:

Rule of thumb ( common sense )

Hit the book:

Center around

Novelty¹

Appeal

Compromise

Prioritize

Domino effect

Nudge

Self-perpetuating

Price-sensitive

The chances of Taco Bell committing to use only cage-free eggs seemed particularly unlikely given how the promise might affect its breakfast menu, which was first introduced last year. The strategy has centered around novelty—there was a waffle taco, then a biscuit taco — and convenience: All of their offerings are easily eaten on the go, many with only a single hand. But its appeal has been predicated on price. Switching to cage-free eggs could compromise that, and with it, the chain's chance of elbowing out some room in the fast-food breakfast space.

1 novelty   

n.新奇事物，新奇（感），新颖廉价的物品

参考例句：

• My mother bought a novelty pen for me.我妈给我买了一支新颖的笔。
• At first I enjoyed all the parties,but the novelty soon wore off.起初我喜欢参加一切聚会，但这种新奇感很快就消失了。