通畅的英文：
unobstructed
clear

参考例句：

The flow of traffic eased off.
交通已经通畅.

It is of great importance to relax the bowels every day.
每天使大便通畅是非常重要的。

Fire escape, asked to be cleared off obstruction.
安全出口，请保持通畅。

" Fire escape, asked to be cleared off obstruction."
安全出口,请保持通畅

Clear;not blocked;unrestricted
通畅的;无阻碍的;不受限制的;不受约束的

Keep your bowels open and regular.
你要保持大便通畅和定时。

Users also complain of poor sound and calls not going through.
此外，音质不好以及信号不通畅也让手机用户们忿忿不平。

unobstructed是什么意思：
无阻挡的

A range of electromagnetic frequencies that pass unobstructed through a planetary atmosphere.
电波反射装置电磁波段能够不受阻碍地穿过行星大气层的一种电磁频率范围

The motorist enjoys an unobstructed view of the natural scenery as he drives across the bridge
汽车驾驶员在开车过桥时，可以一览无余地观赏自然风光。

clear是什么意思：
adj. 清澈的；清晰的；明确的；晴朗的，明亮的；无瑕疵的；畅通的
adv. 清晰地；完全地
v. 变清澈；使清楚；扫除，清除；清（嗓子）；跳过，通过；结清；放晴

attacking clear
比较平直的高远球

clear an account
结清帐户|清帐

To clear as profit.
净得利润

The sky is clearing.
天正明朗起来。

It was a clear case of homicide.
这明显是一起故意杀人罪。