We perfected a hand-signal system so that he could keep me informed of hazards.

我们完善了一套手势信号，这样他就能随时告知我什么时候有危险了。

辞典例句

This hand signal gathers is: Thanks you, I loves you.

这个手势合起来就是: 感谢你们, 我爱你们.

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Anyone can make a T for Tibet hand signal.

任何人都可以做这个T手势.

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Prepare airplane for taxi and give hand signal.

飞机准备滑行,请给手势讯号.

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The finger appeasing even is raised how the energy, is only the fruitless labour hand signal.

可即便安抚的手指抬起又能如何, 只是徒劳的手势而已.

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Use a hand signal to show that you want the dog to stay in position.

用手势表示你想让狗待在合适的位置.

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