present 本身就是動詞
例句
1、
One major problem did present itself， though.
不過，確實出現了一個重大問題。
2、
A further obstacle has presented itself， however.
然而，突然又出現了一個障礙。
3、
Children who have a positive self-image are less likely to present behaviour and discipline problems.
自我感覺良好的孩子較少出現行為和紀律上的問題。
present 形容詞，在場的，到場的
與absent缺席是反義詞
present名詞，禮物，複數形式為presents
present動詞，呈現，過去式/過去分詞presented
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