1.transplant surgery 移植手术
例句:Only 12 weeks ago he underwent major heart transplant surgery.
12个星期前他才刚刚接受了风险很高的心脏移植手术 。
2.protect from 使免受
例句:A covering that is intend to protect from damage or injury.
防止破坏或受伤的一种保护层 。
3.allow to 允许
例句:The doctor allowed him to smoke.
医生允许他吸烟 。
4.freezing point 凝固点
例句:The temperature remained below freezing point throughout the day.
一整天气温都在零度以下 。