"light, crisp bits of bread or biscuit," 1590s, from Spanish or Portuguese rosca "roll, twist of bread," literally "coil, anything round and spiral," of unknown origin, perhaps from a pre-Latin Iberian word.
实用例句
1. Emma broke off a bit of rusk and gave it to Jacinta, who was teething.
埃玛掰了一块脆饼干给正在出牙的贾辛塔。
来自柯林斯例句
2. Rusk has done a lot with State; but no one dealt with CIA.
