insolation：暴晒，日光浴；中暑

词根词缀：in-内 + -sol-太阳 + -ation名词词尾

• subtle
• subtlety
• subtotal
• subtract
• subtraction
• subtropical
• suburb
• suburban
• suburbanite
• suburbia
• subvention
• subversion
• subversive
• subvert
• subway
• subwoofer
• sub-zero
• suc-
• succeed
• success
• successful
• succession
• successive
• successor
• succinct