Definition: when something flows in one direction Level: B2
平缓的河水流淌令人心旷神怡。
The gentle ___flow of the river was calming.
工程师们正在努力改善市中心的交通流量。
Engineers are working to improve the ___flow of traffic in the city center.
源源不断的信息流可能让人应接不暇。
The constant ___flow of information can be overwhelming.
