There are obvious differences between mountain road and plain road in landform and geology. It is very important to ensure the schedule and safety of roadbed construction.
山区公路与平原公路在地形及地质变化方面都有明显区别，确保石方路基的工程进度及安全施工是一个重要问题。
On the other hand, the demerits of second-hand products are as plain as Salisbury, and the most obvious one concerns the quality-related issue.
从另一方面来看，二手商品的缺点显而易见，最明显的就是质量问题。
On the other hand, the demerits of second-hand products are as plain as Salisbury, and the most obvious one concerns the quality-related issue.
从另一方面来看，二手商品的缺点显而易见，最明显的就是质量问题。
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