单词:
1.shoal 鱼群
表示鱼群的量词是 school:a school of goldfish in the pool.池塘里一群金鱼。
2.chirp 拟声词,吱喳而鸣; squeak 发吱吱声
3.collision n.碰撞 冲突
The fierce collision in Syria had suffered a lot of citizens.
发生在利比亚境内的武装冲突使许多居民遭罪受苦。
4.copy A onto B 模仿/复制A,应用到B物体上。
People copied the feature of bat's sonar system onto radar.
人们把蝙蝠的声纳系统应用到了雷达上。