Nanocrystal
納米晶體
??? 情景例句
Canada has the most beautiful waterfalls in the world.
加拿大有世界上最壯觀的瀑布。
My book has a dark blue cover.
我的書有一個深藍色的封面。
Yes, and we must stop people walking on this floor until it's firm. It may be necessary to put up a notice saying Keep off. Another thing, we' ll have to drill a hole in the wall for the electric wires.
是的，因此在地板牢固前，我們必須防止人們從地板上行走?？赡苓€需要豎一個布告牌，寫上“不得踐踏”。還有，我們必須在墻上鉆一個電線孔。