拟建的垃圾填埋场可能对当地供水构成严重威胁。

The proposed landfill could ___pose ___a ___serious ___threat to local water supplies.

海平面上升对全球沿海城市构成了严重危险。

Rising sea levels ___pose ___a ___grave ___danger to coastal cities worldwide.

培训不足给工作场所安全带来了重大问题。

Inadequate training ___poses ___significant ___problems for workplace safety.