essential

US /ɪˈsɛnʃəl/

UK /ɪ'senʃl/

B1 中級英檢中級多益
adj.形容詞必不可少的
It is essential that you write your name on your test paper
adj.形容詞基本的;根本的
The essential point is that we need to act now.
n.名詞精油
Lavender essential oil is known for its calming properties.

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