coasterKK [ˋkostɚ] /ˈkoʊstɚ/发音名词1杯垫Please put your glass on a coaster to protect the table.请把杯子放在杯垫上,以免弄坏桌面。2云霄飞车口语That new coaster has three loops and a huge drop.那座新的云霄飞车有三个回旋和一段超大落差。3沿海货船、沿海航行船只A small coaster was unloading cement at the old dock.一艘小型沿海货船正在旧码头卸水泥。4混日子的人、不出力的人贬义He's a coaster who lets the rest of the team do everything.他就是个混日子的人,什么都让其他组员做。用这个字练口说→