沙特阿拉伯最近的两起病例提醒人们注意病毒的传播迅速，这两起病例似乎与源于尼日利亚并经由苏丹进入的病毒有关。

In a reminder of the ease with which the virus travels, two recent cases in Saudi Arabia appear to be related to virus originating in Nigeria and entering via Sudan.

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注意，图19中actions区域现在已经由有关WBCSCUSTOperation操作和它所接受参数的信息所替代。

Notice in Figure 19 that the Actions section is now replaced with information about the WBCSCUSTOperation operation and the parameters it takes.

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然而，有关“巨蛙”的最新发现表明，马达加斯加和南美洲之间曾经由一条大陆桥连接，直到恐龙时代后期消失。

However, the giant frog finding suggests that a land bridge between Madagascar and South America remained until late into the dinosaur age.

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