The control lines on port and starboard that pull the jib sail in or out.

左舷和右舷上用来将前帆拉出或收起的绳索。

youdao

For example, with the wind at an intensity that a sloop might have to double-reef the main to reduce sail area, a ketch may sail very well under just jib and mizzen.

例如，当风速在某个强度上时，单桅帆可能必须将主帆四叠起来以减少帆面积，而双桅帆则可以只用前帆和后帆来顺利航行。

youdao

The sail in front, called the jib or sometimes the head sail, mounts on the forestay between the bow and the masthead, with its trailing corner controlled by the jibsheet.

前帆，被称作jib，有时也叫head sail，安装在连接船头和桅杆顶端之间的前桅支索上，其后部的帆脚由前帆帆脚索(jibsheet)控制。

youdao

As one of his crew later wrote, Turner didn't have a storm jib (a kind of sail) on board and at one point thought his mast had snapped.

FORBES: Windy City Sailing