for fun

(或 for the fun of it)in order to amuse oneself and not for any more serious purpose

為了好玩兒，鬧著玩兒地

fun and games

amusing and enjoyable activities

有趣的活動，開心的玩樂

teaching isn't all fun and games.

教學不是一天到晚搞有趣的活動。

someone's idea of fun

used to emphasize one's dislike for an activity or to mock someone else's liking for it

［用于表示不喜歡某事或嘲諷他人對某事的喜歡］

being stuck behind a desk all day &B{isn't my idea of fun}.

整天不能離開辦公桌半步可不是好玩的。

in fun

not intended seriously; as a joke

不是當真的；開玩笑的

remember when you meet the press to say that your speech was all in fun.

你和報界人士見面時別忘了說清楚你那次講話只是鬧著玩兒的。

like fun

(dated, chiefly N. Amer.)an ironic exclamation of contradiction or disbelief in response to a statement

(舊，主北美，諷)決不會，哪里有這種事（表示反駁或不相信）

(Brit. archaic)vigorously or quickly

(英，古)有力地；很快地

the mill is blazing away like fun.

工廠燃起迅猛的熊熊大火。

make fun of

tease, laugh at, or joke about (someone) in a mocking or unkind way

取笑，嘲弄（某人）

not much (或 a lot of) fun

used to indicate that something strikes one as extremely unpleasant and depressing

［用于表示對某事感到極為不快］

it can't be much fun living next door to him.

與他為鄰決非幸事。

what fun!

used to convey that an activity or situation sounds amusing or enjoyable

多么有趣！

for fun 或 in fun

As a joke; playfully.

尋找樂趣：開玩笑的；滑稽可笑的