lean back
n. 向后倾斜, 后仰
例句与用法：
He leaned back to hear what she said.
他向后仰想听清她正在说什么。
He leaned back and crossed his knees[legs].
他仰起身子，翘起了二郎腿。
词形变化：
副词: leanly | 形容词比较级: leaner | 形容词最高级: leanest | 名词: leanness | 动词过去式: leaned | 动词过去分词: leaned | 动词现在分词: leaning | 动词第三人称单数: leans |