??? 情景例句
The performing arts centers and the street performances.
表演藝術中心及街頭表演。
I'll pick up the tab.
我來付帳。
Some of the bigger firms are engaged in researches which are of such general and fundamental nature that it is a positive advantage to them not to keep them secret.
某些大公司進行的研究屬于一般和基礎性的研究。因此不保密對他們才有利。