Essentiality
n. 根本性, 真髓, 本质
🗣️ 情景例句
Richard and I will put them into the envelopes.
我和Richard把它们放进信封。
All I have to do is learn English.
我所要做的就是学英语。
Once you begin，you must continue.
一旦开始，你就得继续。