Hubble constant
na. 【天】哈勃常数\\n
🧩 词语组成解析
n. 小凸起, 小瘤
🗣️ 情景例句
He was very kind.
对人和蔼。
Counsel must be followed, not praised.
忠告必须照办，而不是赞美。
Yes, and full payment is due within 30 days.
是的，如果在30天骨付款就没有折扣。