Ceist agam oraibh, a chairde / I have a question: How would this sentence be expressed in English "Ní troimide an loch an lacha."?

I know "loch" and "lacha" but apart from the literal translation what does it mean? Why and in what context might it be used?

Are there other structures like this?

Cuireadh cheana féin an ceist sin orainn -

http://www.daltai.com/discus/messages/13510/48074.html?1256390993

Fáilte roimh cheartúcháin, go raibh maith agaibh.

(Message edited by rothaí on May 29, 2010)

Tá leathrann eile a théann leis;

Ní troimide an cholainn an chiall

Léiríonn sin an chiall, sílim.