Percolation tests
[医] 渗漉试验
🧩 词语组成解析
n. 过滤, 浸透\\n[计] 渗透
n. 测验（test的复数）
🗣️ 情景例句
Your mother is thinking of
你妈妈正考虑
A heavy snow promise a good harvest.
瑞雪兆丰年。
And at seventeen he set off for the USA with a group of comedy actors.
17岁时随同一些喜剧演员去了美国。