railroad tie

音標(biāo)發(fā)音

the British call a railroad tie a sleeper.
鐵路枕木為什么是黑色的。
My stomach dropped when I saw some houses reduced to the railroad ties that had been their foundation.
原來蓋在鐵路路基上的房屋被大水沖走，又露出了路基?？吹竭@種情況，我的心情陡然沉重起來。
East Indian tree whose leaves are used for fodder; yields a compact dark brown durable timber used in shipbuilding and making railroad ties.
東印度的一種樹，葉子可作飼料；出產(chǎn)一種深褐色的結(jié)實(shí)的經(jīng)久耐用的木材，可用于造船和制造鐵路枕木。
After making their way through the trees, they clambered to the top of the steep roadbed, knelt down along the railroad ties and began to play.
他們穿過樹林，攀爬到陡峭的路基上面，跪在鐵軌枕木邊上玩耍。
Handsome East Indian evergreen tree often planted as an ornamental for its fragrant white flowers that yield a perfume,source of very heavy hardwood used for railroad ties.
一種美觀的東印度常綠樹，因其可產(chǎn)香水的芳香白花，而通常作為觀賞植物被種植，其木材堅(jiān)硬、沉實(shí)，用作鐵路枕木。