The English gentlemen always keep themselves away from the rough quarter of the town.
英國的紳士們總是不肯接近這個城市的粗人居住的地區。
The lawyer ascertained that a policeman had indeed delt roughly with foreigners on several occasions.
那位律師查明有個警察的確在好幾個場合中粗暴地對待了外國人。
The rough road across the plain soon became so bad that we tried to get Bruce to drive back to the village we had come from.
穿越原野的粗糙道路，不久變得非常糟糕，以致我們努力說服布魯斯，把車開回我們出發的村子。
crude的原義是“天然狀態的”，在修飾物時指的是“未加工的”、“粗糙的”。在修飾人或思想、行為時，指的是“未開化的”、“低級的”、“粗魯的”
I've never appreciated his crude sense of humour.
我從不欣賞他那低級趣味的幽默。
However, boxing was very crude, for there were no rules and a prize-fighter could be seriously injured or even killed during a match.
然而，當時拳擊非常粗野，因為沒有規則，在比賽中職業拳擊家可能受重傷，甚至被打死。
Yet there is little resemblance between these crude vehicles and a modern scientific ballon,…
然而這種原始的運載工具與現代科學性的氣球之間很少有相似之處。
raw在修飾物時，意思是“生的”（即未加工處理的）、“未熟的”。如raw meat（生肉），raw eggs（生蛋），raw material（原材料），raw hides（生牛皮）等等。在修飾人及思想、行為時，raw指的是“未成熟的”、“無經驗的”、“不老練的”
They are raw recruits.
他們是些新兵。
The bulk and weight of coal required in the majority of manufacturing industries is large in comparison with the bulk and weight of other raw matericals.
在大多數制造工業中，所需要的煤的體積和重量，與其他原材料的體積和重量相比都顯得很大。