standard
单词辨析：
普通用词，指代表某一国家、组织等的旗帜；在体育运动中常指信号旗或标示位置的标志旗。
the free kick near the corner flag
角旗附近的任意球
The national flag is flying in the air.
国旗在空中飘扬。
Do you know the history and meaning of the American flag?
你知道美国国旗的历史和含义吗？
通常指用两根竿子撑起的横幅标语，也可指某种主张、信仰等。
The workers held a banner reading 'We Want Bread' while on strike.
工人们罢工时打着横幅，上面写着“我们要面包”。
They were so excited that they kept waving banners.
他们非常激动，不停地挥动着横幅。
She never felt the need to carry the banner of feminism.
她从来都不觉得有必要举着女性主义的旗帜。
指挂在船上表示国籍的旗帜。
the White Ensign
英国海军旗
Can you tell me about the ensign of the Russian Navy?
你能告诉我俄罗斯海军的舰旗是什么样的吗？
指在正式仪式上使用的旗帜，尤指军旗。
Have you seen the royal standard of the United Kingdom?
你见过英国王室的旗帜吗？
相关例句：
There is no general agreement on a standard definition of intelligence
“智力”一词目前还没有一个普遍认可的标准释义。
The transcript is full of codewords, which is standard practice in any army.
抄本上全是密码，这种做法是所有军队的惯例。
It was standard practice for untrained clerks to advise in serious cases such as murder
让未经过训练的书记员在诸如谋杀等重大案件中提供建议是普遍的做法。
The W.H.O. safety standard for ozone levels is somewhere about a hundred
世界卫生组织关于臭氧层的安全标准约为100。
The London Evening Standard moved offices a few years ago.
《伦敦标准晚报》报址几年前迁走了。
Standard measurements of blood pressure are an important but crude way of assessing the risk of heart disease or strokes
标准的血压测量是评估患心脏病或中风几率的一个重要但不精确的方法。