ejector：驱逐者，放出器，排出器 

词根词缀：e-出 + -ject-投,射 + -or名词词尾

• standing
• standoff
• standoffish
• standpoint
• standstill
• stand-up
• stanza
• staphylococcus
• staple
• stapler
• star
• starboard
• starch
• starchy
• stardom
• stare
• starfish
• stargazer
• stark
• stark-naked
• starlet
• starry
• starship
• star-struck
• star-studded