know no bounds什么意思解释

Does $ CIVNAME 1's arrogance know no bounds ? Why do your troops threaten Moscow?难道$CIVNAME1傲慢无礼到这样的地步 吗 ?你的军队竟然有胆威胁莫斯科?And a few weeks later when a tiny chick hatched, their happiness know no bounds.几个星期后,一只小鸟破壳而出,...

know no bounds的音标：...