n. 
滞素,延缓素
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coast,
coast guard,
coast line,
coast range,
coastal,
coastal plain,
coastdown,
coastel,
coaster,
coaster brake,
相似单词
retardatory,
retarded,
retardee,
retarder,
retarder-equipped,
retardin,
retarding,
retardment,
Retaster,
retasulf,