Impactful
a. 有效的, 有力的
🗣️ 情景例句
Really, Mr. Marchetta?
真的吗，Marchetta先生？
There's a chance he won't be able to be home for Christmas.
他不能回家过圣诞节有偶然性。
and then there are three thousand million other Milky Ways, or galaxies, in the universe.
况且在宇宙中还有30亿个天河，即银河系。