您要查找的是不是：
- The brick cope was corroded by frost damage. 这个砖墙已被霜冻腐蚀了。
- Frost has killed several of our young plants. 寒霜冻死了我们的几株幼苗。
- Young plants are often killed by frost. 植物的幼苗常因严寒而冻死。
- This non sequitur invalidates his argument. 他不根据前提推理因而论证无效。
- The windscreen was covered with frost. 挡风玻璃上结了霜。
- The orient has been playing an active role in the world economy. 亚洲一直在世界经济中发挥积极作用。
- In this area black frost usually comes first in early December. 这个地区通常在12月初开始出现严霜。
- He is an active member of the school's stamp club. 他是学校集邮俱乐部的一名活跃会员。
- Patience is a sine qua non for a good teacher. 做个优秀教师必不可少的条件是要有耐心。
- Frost caused the split in the rock. 霜冻使岩石裂了一条缝。
- The diplomat was declared persona non grata. 这位外交家被宣布为不受欢迎的使节。
- An active volcano may explode at any time. 活火山随时都有可能爆发。
- The frost killed the young tomato plants. 寒霜冻死了番茄幼苗。
- There's a touch of frost in the air. 空气中略有寒意。
- After the heavy frost the road was a sheet of ice. 浓霜过後，路面结了一层冰。
- Is it wise to engage in active sports at your age? 我这样的年纪积极参加体育活动是否明智？
- He is declared personal non grata and forced to leave the country. 他被宣布为不受欢迎的人而被迫离开该国。
- The frost made the leaves curl (up). 叶子受霜冻而卷了起来。
- She was active as a left-winger in the party. 她是党内积极的左翼分子。
- He was very active and rode down several horses. 他劲头很大，一连骑了好几匹马。
