句子语法结构分析(百度,谷歌等机器翻译的都不对),请分析主谓宾定状补,并说清楚谁是修饰谁的.谢谢.
问题描述：
句子语法结构分析(百度,谷歌等机器翻译的都不对),请分析主谓宾定状补,并说清楚谁是修饰谁的.谢谢.
This goal is achieved by a reduction in the rate at which each participant sends RTCP packets as the size of the session increases.
答
The goal主语;is achieved 谓语动词.目标被实现.
被动态is achieved (be+past participle/verb的过去分词)实现的原因由把字句by引导.
by a reduction in the rate 由速率降低实现
at which (which 代替rate) each participant sends RTCP packets as the size of the session incrases 定语从句修饰rate速率：“该目标得以实现是因为速率的降低.这一速率指的是每个参加者在发送***包裹时随着活动时间的延长而下降的速率.