Gelemeter
凝胶时间测定计
🗣️ 情景例句
Men and women, young and old, to give us their time.
不管男女老幼 ，请他们贡献时间。
Can I take a message?
要我传话吗？
Mary is still writing letters. She's been writing letters all day.
马力还在写信，她写了一整天的信。