n.

1. 标准，水平；规格；规范[C][U]
   Your recent work has been below standard.

   你最近的工作一直低于标准。

   Your work is not up to (the) standard.

   你的工作未达到标准。

2. 度量衡标准；（货币）本位[C]
   The kilogram is the international standard of weight.

   公斤是国际通用的重量标准。

3. （硬币的）法定含金（或银）量；（金银的）法定纯度[U]
4. 旗；军旗[C]
5. 直立支柱；灯台；电杆；垂直的水管（或煤气管）[C]
6. 【植】中年木；第一代上木[C]
7. （英国小学的）年级[C]
8. 普通（或通俗）的事物；流行乐曲[C]

a.

1. 标准的[B]
   He wrote in standard English.

   他用标准英文写作。

2. 公认为优秀的，权威的；一流的[B]
   This is a standard atlas.

   这是一本有权威性的地图册。

3. 合规格的；一般性的

n.

1. a level of quality or attainment.
   ▸a required or agreed level of quality or attainment.
   ▸Brit. historical (in elementary schools) a grade of proficiency tested by examination.
2. something used as a measure, norm, or model in comparative evaluations.
   ▸ (standards) principles of honourable, decent behaviour.
   ▸the prescribed weight of fine metal in gold or silver coins.
   ▸a system by which the value of a currency is defined in terms of gold or silver.
   ▸a measure for timber, equivalent to 165 cu. ft (4.67 cubic metres).
3. (especially with reference to jazz or blues) a tune or song of established popularity.
4. a military or ceremonial flag.
5. a tree that grows on an erect stem of full height.
   ▸a shrub grafted on an erect stem and trained in tree form.
6. an upright water or gas pipe.

adj.