circulate是动词，又环流、循环、传播、流传、散布、传送、传递、传阅等等意思。
还可以用作第三人称单数： circulates。
现在分词： circulating。
过去式： circulated。
过去分词： circulated。
例如：The document was previously circulated in New York at the United Nations.
这份文件先前在纽约的联合国总部传阅过。
Rumours were already beginning to circulate that the project might have to be abandoned.
已传出谣言说，该项目可能会被迫取消。
Cooking odors can circulate throughout the entire house.
做饭的香味可以传到家里的各个角落。
