英 [s?m]
美 [s?m]
過去式: summed
過去分詞: summed
現在分詞: summing
第三人稱單數: sums
n.金額；總數；要點
v.概括；總結；歸納；總計
用作名詞 (n.)
I had to spend a large sum of money to get it back.
我得花壹大筆錢才把它弄回來。
I save a nice little sum out of my wages each week.
我從每周的工資中節省壹筆可觀的金額。
用作動詞 (v.)
We can sum up the main point of the lesson in three sentences.
我們可以用三句話來概括本課要點。
So, to sum up, we need to concentrate on staff training.
概括地說，我們需要集中精力進行職工培訓。