[/ʃəˈlæk, also ˈʃelæk; ʃəˋlæk/] n [U] resinous substance in the form of thin sheets or flakes, used in making varnish 虫胶; 紫（胶虫）胶. shellac 2 v (-ck-) [Tn]
用法: 1 varnish (sth) with shellac 给（某物）涂上虫胶清漆.
用法: 2 (US infml) defeat (sb) soundly or severely 彻底击败（某人）.