formidable
US /fɔːrˈmɪd.ə.bəl/
UK /fɔːrˈmɪd.ə.bəl/

形容詞
1.
恐ろしい
causing you to have fear or respect for something or someone because that thing or person is large, powerful, or difficult:
例:
•
a formidable obstacle/task
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恐ろしい
causing you to have fear or respect for something or someone because that thing or person is large, powerful, or difficult: