opt/ɑpt; ɒpt/ v [I] to choose one thing instead of another 选择,挑选: + for We've opted for a smaller car. 我们选择了一辆小一点的汽车。 opt to do sth More high school students are opting to go to college. 现在有较多的高中学生选择上大学。
opt out to choose not to join in a group or system 决定退出,决定不参与: Several countries may opt out of the agreement. 有几个国家可能会决定退出协议。