below the mark
美
英 
- na.在标准以下;在标准以下(的);身体不好
- 网络不够标准;不合格;不够水平
英汉解释
例句
My watch sometimes gains and sometimes loses, so it's below the mark.
我的表有时快有时慢,是不合乎标准的。
You are altogether backward, and below the mark.
你完全落后了,不及格。
Your son is below the mark in an office such as ours.
你的儿子要在我们这样的办公室里工作是不够资格的。
The surface of articular cartilage became evenness by gross morphology but the luster below the mark;
大体标本见关节软骨表面趋于平坦完整,有软骨覆盖,但光泽欠佳;