explosive：爆炸(性)的，爆发(性)的

词根词缀：ex-出 + -plos-爆裂 + -ive形容词词尾

• substantiate
• substantive
• substation
• substitute
• substitution
• substrate
• substratum
• substructure
• subsume
• subtend
• subterfuge
• subterranean
• subtext
• subtility
• subtitle
• subtle
• subtlety
• subtotal
• subtract
• subtraction
• subtropical
• suburb
• suburban
• suburbanite
• suburbia