常用的英文：
in common usage

参考例句：

Current Email
常用电子邮箱

Flemish knot
水手常用的字形绳结

I often use herbal remedies.
我常用草药治病.

Words fall off by disuse
词汇不常用就见废。

The beverage is often colored with caramel.
这种饮料常用焦糖染色。

The most commonly used trigger flip-flop is the master-slave type with cross feedback.
最常用的触发器是交叉反馈的主从触发器。

The most common use of the left mouse button is activation or selection.
左键最常用的方式是激活或选择。

It is the most commonly used linkage mechanism in machine construction.
它是机械结构中最常用的连杆机构。

Sleds pulled by dogs are in common use in the arctic.
狗拉的雪橇在北极地区很常用。

Telephone wires are often insu1ated by a covering of rubber or paper.
电话线常用一层橡皮或纸绝缘。

common是什么意思：
adj. 普通的；一般的；通常的；通俗的；公共的，共有的；共同的
n. 普通；平民；公共地

international common
国际公地

Commonness is happiness.
平凡是福。

A common danger causes common action
同仇敌忾

The series uses common components and common interior electronics.
该系列采用普通的元件和内部电子器件。

Common fame is liar
盛名之下,其实难副

usage是什么意思：
n. 使用；用法；惯例

This is not in agreement with standard English usage.
这不符合标准英式用法。

It's not a word in common usage .
这不是一个常用词。

He was a stickler for the correct usage of English.
他非常注重英语的正确使用。

It's a book of English phonetics,grammar and usage in one.
这是一本英语语音、语法和习惯用语结合为一体的书。

Generalization, Dependency, Binding, Refinement, Trace, and Usage
归纳、依赖关系、绑定、优化、跟踪和用法