Semimillenary
a. 持续500年的
🗣️ 情景例句
for the one seat on the Riverdale School Board,
争夺Riverdale联合校董会一个席次
He that will eat the nut must first crack the shell.
欲所得，必先劳。
A week before, he had completed a successful overland flight during which he covered twenty-six miles.
一周以前，他曾成功地进行了一次26英里的陆上飞行。