埃拉托塞尼斯 [ㄞ ㄌㄚ ㄊㄨㄛ ㄙㄜˋ ㄋㄧˊ ㄙ; ai1 la1 tuo1 se4 ni2 si1] Eratosthenes of Cyrene (c. 276-c. 195 BC), ancient Greek mathematician and inventor ◄ ►