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1·The boat may be imbalanced by having that weight far astern and may squat in the water and not sail as well.

船只可能会因其重量在尾部而变得不平衡，可能会在水里“蹲下”而不能正常航行。

2·Vessel astern of you anchoring.

在你船后面的船正在抛锚。

3·We have to move 10metres astern.

我们船必须向后动10米。

4·Reply: I will pass astern of you.

我将从你船尾通过。

5·The yacht towed a small boat astern.

游艇后面拖了一只小划艇。

6·Man overboard on astern.

船尾有人落水。

7·The captain went astern.

船长（机长）到船（机）尾去了。

8·The vessel astern of you is turning.

你船后面的船舶转向了。

9·Port engine slow astern!

后退一！ 慢车后退！

10·A keg bobbed up astern.

一只小圆桶突然在船尾出现。

向后

1·Look astern, doctor, replied the captain.

“向后看，医生。”船长答道。

2·But few instants were required, when, abruptly shifting the double horizontal rudders forward and astern, he shot upward on the tense and straining.

突然把两个水平方向舵分别调整为向前和向后，他驾着收紧的飞机直冲向上，驶离了风眼，却只用了眨眼的功夫。

3·We have to move 10metres astern.

我们船必须向后动10米。

在后

1·If the boat clear astern becomes overlapped inside the other boat, she is not entitled to room.

如果一船从明显在后变成重叠的内侧船(蓝)，她不能要求给出空间的权利。