Preevacuating
前级真空的
🗣️ 情景例句
going to the children's ward once or twice a week
每星期就去小儿科病房一、两次
A light purse makes a heavy heart.
曩中无钱心事重。
Later it was found that there was a type of mosquito which acted as the carrier of this disease and passed it on to the rabbits.
后来又发现，有一种蚊子是传播这种疾病的媒介，能把此病传染给兔子。