[--]

Jyutping paak3 jau4
Pinyin bó yóu

Definitions (Wiktionary)
  1. noun
    cypress resin
  2. noun
    asphalt concrete

[--]

Jyutping baak3 jau4
Pinyin bǎi yóu

Definitions (粵典–words.hk)
  1. 名詞
    原​指​煤焦油​;​以前​常用​嘅​鋪​路​材料​,​因為​有毒​關​係​而家​只​係​用​瀝青​鋪​路​,​只​係​習慣​上​叫​瀝青路​做​柏油路
    bitumen, originally means coal tar, nowadays bitumen is widely used in road construction instead of coal tar due to toxicity, the term 柏油 (coal tar) is still misused to refer to 瀝青 (bitumen) in Chinese

[--]

Jyutping paak3 jau4
Pinyin bǎi yóu

Definitions (CC-CEDICT)
  1. asphalt
  2. tar
  3. pitch
Definitions (粵典–words.hk)
  1. 名詞
    原​指​煤焦油​;​以前​常用​嘅​鋪​路​材料​,​因為​有毒​關​係​而家​只​係​用​瀝青​鋪​路​,​只​係​習慣​上​叫​瀝青路​做​柏油路
    bitumen, originally means coal tar, nowadays bitumen is widely used in road construction instead of coal tar due to toxicity, the term 柏油 (coal tar) is still misused to refer to 瀝青 (bitumen) in Chinese
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    这条街铺上了柏油。
    這條街鋪上了柏油。
    zhè tiáo jiē pù shàng le bǎi yóu 。
    • The street is paved with asphalt.