往往的英文：
often
frequently

参考例句：

She tends to dramatize.
她往往言过其实。

An old or sick person is often feeble.
老人或病人往往很虚弱。

Blighted stems often canker.
有病的茎往往溃烂。

Diagonal lines tend to have the appearance of falling.
斜线往往给人坠落之感。

Slang words are often ephemeral.
俚语往往只流行于一时。

Amateur actors often overact.
业余演员往往表演过火。

When it's foggy, the trains are late as often as not.
雾大时，火车往往晚点。

At the caudal end of the sacrum the roof of the vertebral canal is commonly deficient
在骶管末端，椎管往往缺损。

He who knows only how to wield a pen usually feels quite helpless in the face of practical problems.
光会耍笔杆的人，碰到实际问题往往束手无策。

Men often applaud an imitation, and hiss the real thing. —— Aesop
人们往往赞美赝品，而轻蔑真品。——伊索

often是什么意思：
adv. 时常，常常；往往，通常

They often gossiped.
They often gossiped.

Often the good suffer, and often the wicked prosper.
好人总是受气遭殃，坏人往往青云直上。

She often keeps a diary.
她常记日记。

We often go hunting.
我们常常去打猎。

He often appear as a soloist.
他经常作为独奏者上台演出。

frequently是什么意思：
adv. 经常地

These faculae frequently are the forerunners of sunspot formation
这些光斑常常是形成太阳黑子的先兆。

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。

He is a frequent visitor to our house.
他是我们家的常客。

His frequent hesitations annoyed the audience.
他三番五次欲言又止，听众已感到厌烦。

The stud frequently blew himself out
这匹种马常屏住气把胸部胀得鼓鼓的。