常见例句用作名词 (n.)Google on Tuesday announced to open signups of its social network "Google+" after a 90-day invitation-only trial run.谷歌周二宣布Google+社交网络向公众开放注册。在此之前，Google+已经进行了90天的试运行，不过只有通过成员邀请才能加入。 返回 signup