■ 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）。

• difficult
• difficulty
• dilemma
• dimension
• dinner
• dirty
• dirty 与 soiled
• disappeared
• disapprove
• disapprove of
• disapprove 与 disapprove of
• discover
• discover 与 invent
• disinterested
• disinterested 与 uninterested
• dislike
• disposal
• disposal 与 disposition
• dispose of
• disposition
• dissatisfied
• dissatisfied 与 unsatisfied
• distance
• distinct
• distinct, distinctive 与 distinguished