经常的英文：
day to day
everyday
daily
frequently
constantly
regularly
often

参考例句：

People with no sense of direction can easily get lost.
路痴经常迷路。

People with no sense of direction can easily get lost.
路痴经常迷路。

Recurring often or regularly
经常发生的;周期性的

Not infrequently he was termed Hurry Skurry
他经常被称为哈利?霹雳。

They often give dinners in honor of their guests.
他们经常为客人举行宴会。

We train regularly to keep fit.
我们为了保持身材，经常进行锻炼。

When my father was a child he suffered hunger and cold and was often cursed and beaten.
我爸爸小时候挨饿受冻，还经常挨打挨骂。

To accustom by frequent repetition or prolonged exposure.
使……习惯由于经常重复或长时间接触而适应。

The duty of a meteorologist is to observe the weather at all times.
气象学家的职责就是要经常观察天气。

To pester or annoy persistently or incessantly.
使苦恼，烦扰经常不断地打扰或烦扰

day是什么意思：
n. 一天；白昼，白天；工作日；时代，时期

Things go on day by day.
事情逐日进行着。

Day by day the situation is improving.
情况在一天天地好转。

Like this, day after day.
就这样，日复一日。

everyday是什么意思：
adj. 每天的；日常的

He doesnt shave everyday.
他并不每天刮脸。

They hone their skills in their everyday lives.
他们在日常生活中磨炼才能。

The poet metamorphoses the everyday into the universal.
诗人把日常的事变为普遍性的事。

daily是什么意思：
adj. 每日的；日常的；一日的；每个工作日的
adv. 日常地；每日；天天
n. 日报；（不寄宿的）女佣

daily prints;rushes;dailies
工作样片

As a result daily output has doubled.
结果日产量翻了一番。

This is a daily taking's report.
这是一份每日收入报告表。