茫然: blankly, vacantly, at a loss...
新人: newcomer, fresh talent, newlywed, esp. new bride, bride and groom, (paleoanthropology) Homo sapiens...
见效: to have the desired effect...
石头: stone...
不为人知: not known to anyone, secret, unknown...
边缘: edge, fringe, verge, brink, periphery, marginal, borderline...
不宜: not suitable, inadvisable, inappropriate...
招牌: signboard, shop sign, reputation of a business...
一不小心: accidentally...
约定: to agree on sth (after discussion), to conclude a bargain, to arrange, to promise, to stipulate, to make an appointment, stipulated (time, amount, quality etc), an arrangement, a deal, appointment...
