may/might as well idiom
B2 （反正也没有更好的办法）要不就…
used to suggest doing something, often when there is nothing better to do
We might as well walk there. 我们要不就步行去那里吧。
We may as well start the meeting - the others will be here soon. 我们要不开始开会吧——其他的人很快会来的。