不連胸骨的

One of the fishing boats sank down astern of us. 有一艘漁船在我們后面沉沒了。

The hire purchase company repossessed my car because I fell astern with the payments. 這家分期付款購買公司取回了我的汽車，因為我沒能及時付款。

A ship falls astern by the force of a current. 船會受水流的力量而后退。

When the engine failed, we had to drop astern. 當發(fā)動機發(fā)生故障，我們不得不落在后面。

S: I am operating astern propulsion. 我船正在倒車。

胸骨旁