交通堵塞会阻碍我们按时到达。
jiāotōng dǔsè huì zǔài wǒmen ànshí dàodá 。
Traffic congestion will obstruct us from arriving on time.
他的话阻碍了我的思考。
tā dehuà zǔài le wǒde sīkǎo 。
His words hindered my thinking.
我们必须消除一切可能阻碍进展的因素。
wǒmen bìxū xiāochú yīqiè kěnéng zǔài jìnzhǎn de yīnsù 。
We must eliminate all factors that could obstruct progress.