Correct mixture
[建] 标准气体混合物
🧩 词语组成解析
🗣️ 情景例句
It's still a little over two hours, Harry.
仍然还有两个多小时， Harry。
Still waters run deep.
大智若愚。静水流深。
These friendly dogs, which were first brought from Asia, were used as watchdogs even in Roman times.
那些最先从亚洲引进的狗，待人友好，早在罗马时代就给人当看门狗了。