Lactolin
乳醇菌素
🗣️ 情景例句
Nobody displayed any interest.
没人显得感兴趣。
It is not polite to eavesdrop on the conversation of other people.
偷听他人说话是很不礼貌的。
Old tunes are sweetest and old friends are surest.
老调最甜美，老友最可靠。