他们沿校墙挖沟.They dug a dike along walls of the school.挖沟以排水.Dig trenches to drain away the water.他们挖沟以阻止森林大火蔓延.They dug trenches to keep the forest fire from spreading....
他沿原路返回树林,爬上一棵粗壮的大树.He backtracked into the wood and climbed a tall tree.那两个粗壮的警卫俯身抓住他的胳膊才制服他.The two sturdy guards had stooped to take him by the arms.我想,那里现在大概有一位胳膊粗壮的女管家了吧.I suppose there is some matron with beefy fore...