raft of timber

例句：

1. 1. The boat was built on a raft of logs.
   这艘船是用一根根木头搭成的。
2. 2. They used the raft to cross the river.
   他们用这个筏子过河。
3. 3. The raft was carrying a load of cargo.
   这个筏子载着一些货物。