He says the works there-which have included shoring up a stone retaining wall and restoring an outdoor stone altar-were not only necessary, but a feat.

他说那里的施工——包括加固一面石头护墙，整修一个室外的石头祭坛——不仅必须，而且称得上壮举。

youdao

A retaining wall would be able to withstand hurricane winds with no additional supports, while also exhibiting excellent acoustic properties.

防风墙将在没有额外支撑的情况下抵御龙卷风，并同时具有出色的隔音效果。

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It doesn't really look like a building-just some low stone walls abutting an ancient terraced retaining wall 60 feet high.

事实上，它们根本不能称之为建筑——那只是几堵低矮的石墙而已，毗连着一面高达18米的古老阶地挡土墙。

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Mr Collier told the court the wall was built as a garden wall and not a retaining wall.

BBC: Meg Burgess wall death: Don't seek revenge, jury urged

Mr Collier told the trial during his evidence that the wall was built as a garden wall and not a retaining wall.

BBC: Meg Burgess

Mr Cox said the wall had not been constructed as a retaining wall, had not been designed as such and it collapsed moments after being backfilled.

BBC: Meg Burgess