be open to愿意听取和接受

My boss is open to suggestions and critics from all aspects

我的老板乐于接受来自各方面的意见和建议

Colleges in the United States are open to students of all ages.

美国大学录取各年龄阶层的学生

throw one's hat in the ring参加竞赛或是政治竞选

The sport meeting is going to be held in a few weeks,and he had thrown his hat in the ring

运动会几周后就要开始了，他已经报名参加了

My hat's in the ring

我已经决定参加竞选了

背景音乐：moonlight shadow