词汇	gatekeeper rs cabin
释义	gatekeeper rs cabin 道口看守房
随便看	backward tension back ward tension backward test channel backward thinking backward thrust backward tilt backward tilting trough backward-tilting trough backward-titling trough backward torque backward tracing backward tracking backward trajectory backward transfer backward transfer admittance backward transfer character backward transfer characteristic backward transfer character istic backward transfer characteristics backward-transfer signal backward transter character backward travel backward traveling wave backward travelling wave backward-travelling wave tube