studying certificate，在读证明;学历证明;certificate[səˈtɪfɪkət]n.证明书; 文凭，结业证书;vt.发给证明书; 用证书证明（或认可）;[例句]To the right of the fireplace are various framed certificates.壁炉的右边是各种镶框的证书。[复数]certificates