momentum

US /moˈmɛntəm/

UK /mə'mentəm/

B2 中上級TOEIC
n. (u.)不可算名詞(活動などの)勢い
The sled kept going because it had a lot of momentum

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東京の耐震化 (How Tokyo Made Itself Earthquake-Proof)

07:14東京の耐震化 (How Tokyo Made Itself Earthquake-Proof)