■ 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）。

• signature
• signature
• signature 与 autograph
• sin
• sin
• since
• since
• since
• since
• since
• since 与 for
• since 与 from
• sin 与 crime
• sit
• sk-
• skeptical
• sk-, sp-, st-
• sky
• sky
• sky 与 heaven
• slander
• sleep
• small
• small print
• small 与 little