I'd like to leave a message for him, if you don't mind.
你若不介意的话,我想留话给他。
Our own actions are our security, not others' judgements.
我们的行为是自己的保证而不是别人的鉴定。
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.