Leach's tests
[医] 利奇氏试验(检甲醛)
🧩 词语组成解析
n. 测验（test的复数）
🗣️ 情景例句
Would you tell me something about your family?
请告诉我一些你的家庭情况，好吗？
Have him return my call.
让他给我回电话。
It contained $300 in pennies.
他坚持要店员点清那些硬币后他才离去。