our后缀的单词有:tour,pour,four,sour
例句
1.
By popular demand, the tour has been extended by two weeks.
应大家要求,这次旅游延长了两周。
2.
The town is an ideal base for touring the area.
这个镇子是在这一地区旅游观光的理想据点。
3.
They went to Italy on a coach tour.
他们乘长途客车去意大利旅游。

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