Which of these words are synonyms：friendly，mean，unkind，different？
译句：下列单词中哪些是同义词：friendly，mean，unkind，different？（答案附在文末）
synonym/'sɪnənɪm/ n.同义词
[反义词]：n. antonym, opposite word
[例句]：
• The dictionary usually has antonyms and synonsym.
字典里都能查到反义词和同义词。
• For example, 'clever' is a synonym for 'intelligent'.
例如，“ clever ”是“ intelligent ”的同义词。
mean /min/ vt.本意是,怀有某目的; adj.吝啬的,卑鄙的; n.平均数,中庸
[反义词]：n. nice, noble
[惯用语]： in the mean time 同时
[例句]：
• Television is an effective means of communication.
电视是一种有效的通信手段。
• Your friendship means a great deal to me.
你的友谊对我来说是很珍贵的。
• Don't be so mean to your little brother!
别对你弟弟那么刻薄！
Unkind/ˌʌn'kaɪnd/ adj.不仁慈的，不厚道的；无情的
[反义词]：kind
[例句]：
• She was very hurt by his unkind words.
他出言不逊,使她十分伤心。
• We shouldn't laugh. That's so unkind.
我们不该说笑人家，这样不太好。
答案：mean and unkind
