形容词 trouble-free:

1. without problems or difficulties

troubleed不安的troublen.困难；烦恼；麻烦v.使烦恼；麻烦；苦恼；费神troubleshooting oscilloscope故障测定示波器trouble in furnace condition炉况失常Trouble in the control tower塔台之患trouble diagnosis technology故障诊断技术trouble shooting oscilloscope故障测定示波器trouble of rotating mechanism转机故障Troubles never come singly.福无双至，祸不单行。trouble caused by compression重压故障trouble of water chilling unit冷机故障trouble of encoder and decoder编译码器故障