Additive concentration
[机] 添加剂浓度
🧩 词语组成解析
🗣️ 情景例句
Thanks a lot.
非常感谢。
I told him to come in and wait here.
我告诉他进来在这里等。
Meanwhile, a microphone, which was lowered into the mine two hours ago, has enabled the men to keep in touch with their closest relatives.
与此同时，两个小时以前放下井去的一只麦克风使井下的人可以与其亲属保持联系。