■ childish 与 childlike

前者是“幼稚”（有贬义），后者是“童真可爱”。

• Don't be so childish!别这样孩子气！
• I thought her nice but rather childish.我觉得她很不错，但相当孩子气。
• She looked at us with her big, childlike eyes.她一双天真烂漫的大眼睛看着我们（-ish 常常有贬义，-like 则常常不褒不贬，甚至带有一点欣赏的语气）。

• work on sb
• world
• world war
• worried
• worrisome
• worth
• worthy
• would
• would you like
• wound
• wound
• wrap
• wrap up
• wrong
• wrongful
• wrong side of the tracks
• xerox
• yes
• yes
• yes, i do
• yes 与 no
• yet
• yet
• you
• younger