coast·er
noun/ˈkəʊstə(r)/
/ˈkəʊstər/
- a small flat object that you put under a glass to protect the top of a table
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玻璃杯垫 - a ship that sails from port to port along a coast
Topics Transport by waterc2航行于沿海港口间的轮船 see also roller coaster