oar
n
1 long pole with a flat blade, pulled by hand in order to drive a boat through the water 桨. =>illus at row 见row插图.
2 (idm 习语) put/shove/stick one's `oar in; put/shove/stick in one's `oar (infml 口) give an opinion, some advice, etc without being asked; interfere 干涉; 干预
I know how to mend a fuse and I don't need you shoving your oar in! 我知道怎麽弄保险丝, 用不著你管!
It took him some time to connect the long rubber pipe to the air supply pipe that ran round the port, but at last it was done and as a result work was able to progress much faster.