土壤浸出液
参考答案：
对土壤进行过滤、离心、抽吸或压榨而分离，提取出的溶液。
It was such a funny show that people couldn't help _____ again and again. [ ]
A. laugh
B. to laugh
C. laughing
马肉中因含有较多的糖原，故马肉容易发酸。( )
