新的排水系统投入使用后,地下通道的排水明显更加通畅。Xīn de páishuǐ xìtǒng tóurù shǐyòng hòu, dìxià tōngdào de páishuǐ míngxiǎn gèngjiā tōngchàng.After the new drainage system was put into use, drainage in the underpass became noticeably smoother.
感冒好了,鼻子终于通畅了。Gǎnmào hǎo le, bízi zhōngyú tōngchàng le.The cold is over, and my nose is finally clear.
路面拓宽以后,车流一直很通畅。Lùmiàn tuòkuān yǐhòu, chēliú yīzhí hěn tōngchàng.After the road was widened, traffic has flowed smoothly the whole time.