Titroscope
滴定式酸碱计
🗣️ 情景例句
and leave the number with the baby-sitter.
把餐厅的电话告诉临时保姆。
Lend your money and lose your friend.
赔了夫人又折兵。
She wanted to see the doctor because her back hurt.
她是来伦敦看望女儿的。她要看医生是因为背痛。