1.flock to 涌到
例句:These people are willing to take the risk of having an opinion, and so others flock to them, like pedestrians running for shelter during a downpour.
这些人甘冒风险大胆发表自己的意见,其他人就会随之聚集在其周围,就像行人在下暴雨时寻求遮蔽物一样
。2.security concern 安全问题
例句:However, this is not necessarily a security concern since the file system access control mechanism usually provides sufficient protection.
不过您也不必担心安全问题,因为文件系统访问控制机制通常都可以提供充分的保护
。3.be part of 成为…的一部分
例句:Business representatives should also be part of this group.
商业代表也应该是这个组的一部分
。4.pelt with 用(某物)扔某人
例句:The children pelt each other with snowballs.
孩子们互相投掷雪球
。