passable
adj. 尚可的；可通行的；（钱币等）可流通的
例句
The airport road is passable today for the first time in a week.
机场公路今天是一周来第一次可以通行。
《柯林斯英汉双解大词典》
Stan puffed out his thin cheeks in a passable imitation of his dad.
斯坦鼓起瘦瘦的脸颊，像模像样地模仿着他的爸爸。
As it turns out, waiters see only a tiny bump in tips when they do an exceptional job compared to a passable one.
事实证明，即使服务员的工作做得非常出色，他们得到的小费也只会比普通服务员多一点点。
