两者都定义
air defence───防空；空防
to define───下定义
water diviner───水师
water line───水位；（船的）吃水线
character defense───性格防卫，性格防御
water diviners───水师
character defenses───性格防卫，性格防御
better deal───更好的交易
bid defiance───蔑视
