Defease
vt. 使作废，废除(合同、契约等)：
🗣️ 情景例句
Living conditions in the desert around Las Vegas are very harsh.
在拉斯韦加斯的周围的居住条件非常艰苦。
The industrial area is centered largely in the north.
大部分工业区域集中在北方。
Please forgive me for not writing to you.
原谅我没有写信给你。