March saw a 7.3 magnitude quake in Yutian in Xinjiang and now we have a 7.8 magnitude quake in Wenchuan.是什么意思_March saw a 7.3 magnitude quake in Yutian in Xinjiang and now we have a 7.8 magnitude quake in Wenchuan.在线翻译_英语_读音_用法_例句