dark l
noun [ C ] phonetics specialized uk/ˌdɑːk ˈel/ us/ˌdɑːrk ˈel/
模糊的/l/音;含糊舌边音/l/（发音时舌头后部向上）
a way of saying an /l/ sound, in which the back of the tongue is raised slightly
Dark l typically occurs before a consonant, as in "help". 含糊舌边音/l/通常出现在辅音前，比如在help中。
Compare: clear l