can butcan only 只好；只能（后接动词原形）*He can but do it by himself．他只好一个人干了。
onlyon.ly[`onlI; ˋounli]《one 和 -ly 的混合语》形容词（无比较级、最高级）1 a. [the ~, one's ~]唯一的,仅有的He is the ~ friend that I have.他是我仅有的一个朋友They were the ~ people present.他们是仅有的出席者Her ~ answer was her sobs.她 ...