Their height, level of maturity, their interests, as well as their need to play and travel safely to school, mean that they require special safety measures.
他们的身高、成熟程度、兴趣以及玩耍和安全到校的需要,意味着需要对他们采取特别的安全措施。
Works in such conditions, local materials spillway dam how to coordinate the size and height of buildings to ensure that safety is a major engineering design experience.
在此类工程条件下,当地材料坝如何协调泄洪建筑物规模与坝高以保证工程安全是本工程设计的主要经验。
Local civil aviation officials said, does not require a clear landing height to protect the safety of aircraft over the airport fence.
当地民航官员称,确实没有规定一个明确的降落高度来保障飞机安全越过机场护栏。
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