大同小異
much of muchness：The two articles are much of muchness ( be alike with minor difference ; There's not a pin to choose between the two ) in appearance and quality.

大言不慚
blow your own trumpet：You really blow your own trumpet. (talk big; overshoot oneself)

大快朵頤
They are so delicious that I ate my fill. (gorge oneself; tuck in at; have/take one's fill.)?

大功告成
The big project finally came off with honors (bring home the bacon; come through with flying colors).

大智若愚
He who cannot play the fool is not a wise man.

大器晚成
Rome was not built in a day.

大海撈針
needle in a haystack：Finding your lost contact lens is just like looking for a needle in a haystack.

山窮水盡
at the end of one's resources

山中無老虎，猴子稱大王
Among the blind the one-eyed is king./When the cat's away, the mice will play.

小題大做
Make a mountain out of a molehill. ( fuss about trifles; a tempest in a teapot; a storm in a teacup; break a butterfly on a wheel )

小Car筆記：
much of a muchness：大同小異very much the same
tuck：<俚>大吃，通常后面接away/in
come off：實現(xiàn)，發(fā)生
bring home the bacon：成功，也有養(yǎng)家糊口，謀生的意思
play the fool：干蠢事，演滑稽角色?
contact lens：隱形眼鏡

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