新闻英语：“相约自杀”英文怎么说

QQ是国内最普及的一种即时通讯工具。

　　上文中的suicide pact就是“相约自杀”，pact指“协定，条约”等，多为written agreement(书面约定)，conclude/make a pact on something就表示“就某事达成约定”，例如：They made a pact not to tell anyone. (他们说好绝不告诉任何人。)

　　The parents of a boy who killed himself in asuicide pact arranged over China's most popular instant messaging service, QQ, are suing its owner, Shenzhen-based Tencent Holdings Ltd。

　　请看《中国日报》的报道：