Essentiality
n. 根本性, 真髓, 本质
🗣️ 情景例句
I type about 40 words per minute.
一分钟我能打40个字。
What is happening down there?
下面发生什么事情？
have no chance of transporting us to the nearest other star, four light years away,
但尚不可能把我们送到离我们最近、相距4光年的其他星球上去，