Mclg
abbr. maximum contaminant level goal 最大污染浓度指标
🗣️ 情景例句
That's like closing the gate after the horse has bolted.
那无异于马后炮。
I read 8 lines.
我读了八行字。
The temperature will stay above zero in the day-time, but at night it will fall below zero again.
白天气温保持在零度以上，但夜间仍会降至零下。