Besides the main speakers , many other club members were also present . they gave an enthusiastic help when the students met a block 除了主讲人，俱乐部的许多其他成员也到了活动现场，在同学们操作遇到困难举手示意的时候，他们便会过去给予热情详尽的帮助。
In case of any question about the bid opening record , the representative of the bidder should raise his hand to the presider for approval before making a short explanation 如投标人代表对开标记录表有疑义，请向主持人举手示意，征得本主持人同意后，可以简要说明。
Do not raise hands to alert driver when crossing the road as it is unrealistic to assume that drivers would stop or have enough time to stop their vehicle 不应该不要利用手势示意司机停车，让自己过马路，因为不可假设司机会因为自己举手示意而一定会或者能够赶及停车。
