5. A pioneering project is making an eco-friendly concrete from crushed shells,
which would allow water to drain through it, and could be used for footpaths,
car parks, and gardens to _________ flooding.
(A)alleviate
(B)annex
(C)alliterate
(D)curtail
詳解 (共 2 筆)
未解鎖
一項開創性的專案正在研發一種以破碎貝殼製...