trough: [OE] Etymologically, a trough is something made out of ‘wood’. Its ultimate source is Indo-European *drukós, a derivative of the base *dru- ‘wood, tree’ (source also of English tree). This passed into prehistoric Germanic as *trugaz, which has since diversified into German and Dutch trog, Swedish tråg, Danish trug, and English trough. English trug ‘shallow basket’ [16] is a variant of trough. => tray, tree, trug
trough (n.)
Old English trog "wooden vessel, tray, hollow vessel, canoe," from Proto-Germanic *trugaz (cognates: Old Frisian, Old Saxon, Old Norse trog, Middle Dutch troch, Dutch trog, Old High German troc, German trog), from PIE *dru-ko-, from root *dru-, *deru- "wood, tree" (see tree (n.)). Originally pronounced in English with a hard -gh- (as in Scottish loch); pronunciation shifted to "-ff," but spelling remained.
实用例句
1. The old stone cattle trough still sits by the main entrance.
陈旧的石制牛食槽仍然放在大门口。
来自柯林斯例句
2. The trough of low pressure extended over about 1000 kilometres.
低压槽延伸约1,000公里。
来自柯林斯例句
3. American bank shares have risen by 60% since their trough last October.
美国的银行股自从去年10月跌入低谷以来已经上涨了60%。
来自柯林斯例句
4. As the wave bore down on us, the trough deepened.
当波涛向我们压来时, 波谷加深了.
来自《简明英汉词典》
5. They led the workhorses to the watering trough.
