instead/ɪnˈsted/
adv.1. 替代；更换If you cannot go, let him go instead.如果你不能去，让他替你去。
I didn't have a pen, so I used a pencil instead.我没有钢笔，因此我就用铅笔了。
2. （与of连用）代替We'll have tea in the garden instead of in the house.我们将改在花园喝茶，而不在屋里喝。
I will go instead of you.我代你去。