ancillary

补助的, 副的英释中释adjconnected with or supporting something else, but less important than it

1 ancillary equipment,辅助设备；外部设备；外围设备

2 ancillary service,附属设备；辅助性服务

3 ancillary materials,辅助材料

1 Agreement was reached on several ancillary matters..就一些相关问题达成了协议。