call on upon 访问
It will likely call upon countries to pay particular attention to the needs of pedestrians, cyclists and motorcyclists, those groups considered most vulnerable on the roads.
它可能会呼吁各国特别重视据认为是最易在道路上受到伤害的行人以及骑自行车和摩托车者的需求。
In this case, the owner was luckier than most. He had some 12, 000 followers on Twitter to call upon for help.
在这个事例中,失主比其他人幸运,他在微博上有大约1万两千个粉丝可以召唤来帮助自己。
Though they preferred to patrol the shadowy forests of Ashenvale on their own, they had many Allies upon which they could call in times of urgency.
虽然她们喜欢在灰谷周围的茂密森林中独自巡逻,但哨兵们也有许多在紧急关头可以提供帮助的同盟。
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