coaster

• 名词，有多个含义：可指沿海地区居民；也可指毫不费力地移动的人（或事物）；还可指放置杯子或瓶子以防损坏桌面的垫子。

A noun with multiple meanings: it can refer to a person living in a coastal region, someone who moves without effort, or a protective mat or plate placed under a glass or bottle to prevent damage to a table surface.

1. Coastal residentB2formal

   A person who lives in a region near the coast.

   沿海居民

   • The coasters enjoyed the mild climate all year round.
   • Many coasters rely on fishing for their livelihood.
   • The festival was popular among both locals and coasters.

2. Someone who coastsB2informal

   A person who moves along without much effort, often downhill or without using power.

   滑行者

   • He's a coaster in life, never really pushing himself.
   • The skier was a natural coaster down the gentle slope.
   • On the bike path, coasters often pass by without pedaling.

   反义词go-getterhard workerstriver

3. Table protectorA2formal

   A small mat or plate placed under a glass or bottle to protect the table surface from moisture or heat.

   杯垫

   • Please use a coaster to avoid leaving rings on the table.
   • She collected decorative coasters from every country she visited.
   • The bartender set the drink on a branded coaster.

   同义词beer matmattable mat