west cardinal mark
/ˈwɛst ˈkɑːdɪnəl ˈmɑːk/
n
English · west cardinal mark中文 · 西方位标Español · señal cardinal del oesteFrançais · marque cardinale ouest
意味：Buoy with two point-to-point topmarks that is placed to the west of a danger zone. cardinal marks