unnavigable

常見例句

"We see the foundations wearing away, the stone steps crumbling, the unnavigable canals.
他說：“我們眼看著地基逐漸磨損，石頭臺(tái)堦碎裂，河道也不再通航?！?/li>
It is 822 mi (1,323 km) long.It is torrential for most of its course and is unnavigable.
它長(zhǎng)約822哩（1,323公裡），由於其大部分河段皆湍急洶湧，故難以航行。
Corporate Websites: I recently co-judged a competition of nominated best-of-class business websites, and I was aghast at how unnavigable and useless most of them were.
企業(yè)類網(wǎng)站: 近期我蓡與了一項(xiàng)最佳商業(yè)網(wǎng)站的評(píng)委工作，卻驚奇地發(fā)現(xiàn)這些網(wǎng)站中的大多數(shù)都是不能正常運(yùn)行或者毫無價(jià)值的。
unnavigable river
不通航河流