2011高考英语词汇短语总结--B字母开头.
1. lie on one\'s back 四脚朝天躺着
the back number of...过期的…(the current…)
back and forth来回 turn one\'s back on sb 不理睬…
2. historical background 历史背景
He is a worker by background .他是工人出生。
1. lie on one\'s back 四脚朝天躺着
the back number of...过期的…(the current…)
back and forth来回 turn one\'s back on sb 不理睬…
2. historical background 历史背景
He is a worker by background .他是工人出生。