然而对于这次系列恐怖袭击事件造成死100多人伤大约250人左右这一确切情况，周三晚的华盛顿并不清楚。
But the exact circumstances of the series of attacks, which killed over 100 people and injured some 250, were unclear on Wednesday evening in Washington.
然而，人们往往并不清楚是什么诱发了任何特定哮喘的发作，其结果，大多数哮喘患者得不到妥善处置。
Yet what triggers any given asthma attack is often unclear and, as a consequence, most asthmatics are not properly treated.
然而该集群中其他的成员并不清楚这项更改，其本地副本并没有得到更新。
While the other member of the cluster is not aware of this change, its local copy is not updated.
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