Hls
abbr. holes 洞; heavy liquid separation 重质液体分离; heavy logistics support 大型后勤支援; hills （复数）高地
🗣️ 情景例句
Take it easy!
再见。
What is the total circulation of this publication.
这家刊物总发行量多少？
I agree with you. We've got to do something about pollution. It's getting worse.
我同意你的看法。我们得对污染采取措施了。污染越来越严重了。