Determeter
(往复式)去污试验仪
🗣️ 情景例句
Aren't you a little scared?
难道你不会感到有点紧张吗？
Say not all that you know, believe not all that you hear.
莫道全所知，莫信全所闻。
This mooncake is very nice.
这个月饼很好。