本期内容：

Russian investigators arrived in Turkey to inspect the scene of their ambassador’s murder by a Turkish police officer. Both countries vowed that the assassination would not disrupt their ties. Police have detained a number of people, mostly the suspect's family. In Istanbul, the authorities went ahead with the opening of a new road tunnel under the Bosphorus strait.

Ambassador: 大使
Vow：发誓
Assassination：暗杀
Detain：拘留
Suspect：嫌疑人
Tunnel：隧道
Strait：海峡

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