■ undersell

及物动词，商业用语，undersell“以低于（他人的）售价出售，抛售”。

• We will not be undersold, guaranteed! If you find a lower price at any of our competitors, we will meet that price.本店保证售价决不高于他人！阁下如发现有任何与本店竞争者售价更低廉，本店定将按照该低价出售。

• flag 与 banner
• flammable
• flammable 与 inflammable
• flatter
• flee
• flesh
• flesh
• flesh 与 meat
• flight
• floor
• flora
• flourish
• foe
• follow
• following
• fool
• foot
• football
• football 与 soccer
• for
• for
• for
• for
• for
• for all that