n.前桅支索
A single-masted, fore-and-aft-rigged sailing boat with a short standing bowsprit or none at all and a single headsail set from the forestay. 单桅纵帆船：一种只有一根桅杆，纵向帆索的帆船，船首斜桅很短或根本没有，前索只有一面首帆
