The earlier aviators had found that two planes, or double-deckers, gave the best results. 鲁伯特·萨金特·荷兰.历史性发明.
The planes should have come an hour ago, he said. 欧内斯特·海明威.丧钟为谁而鸣.
Then the planes machine-gunned the hilltop and went away. 欧内斯特·海明威.丧钟为谁而鸣.
Only if the planes do not come. 欧内斯特·海明威.丧钟为谁而鸣.
He lay back and sighted with the automatic rifle as the planes came on steadily. 欧内斯特·海明威.丧钟为谁而鸣.
Again, the experiments demonstrated that the force necessary to maintain at high velocity an apparatus consisting of planes and motors could be produced by means already available. 李贝.西洋科学史.
No one spoke about these planes last night? 欧内斯特·海明威.丧钟为谁而鸣.
It was three o'clock in the afternoon before the planes came. 欧内斯特·海明威.丧钟为谁而鸣.
In this way one hand could control both the steering and the balancing of the planes. 鲁伯特·萨金特·荷兰.历史性发明.
Sordo, when thinkest thou the planes will come? 欧内斯特·海明威.丧钟为谁而鸣.
A saw which planes, as well as severs, is shown in patents to Douglass, Nos. Edward W. Byrn.十九世纪发明进展.
He watched still more planes coming over in the high cloudless blue sky and he watched Agustín's face as he looked up at them. 欧内斯特·海明威.丧钟为谁而鸣.
And go over and over in the sky like the little pursuit planes shining in the sun, she said. 欧内斯特·海明威.丧钟为谁而鸣.
It will be underground to protect from the planes. 欧内斯特·海明威.丧钟为谁而鸣.
Maybe the planes aren't coming, he said. 欧内斯特·海明威.丧钟为谁而鸣.
Have there been planes like this before? 欧内斯特·海明威.丧钟为谁而鸣.
In the afternoon they were bombing their own troops with planes. 欧内斯特·海明威.丧钟为谁而鸣.
If the French help at all, if only they leave the frontier open and if we get planes from America they can never finish with us. 欧内斯特·海明威.丧钟为谁而鸣.
Just then the others on the hill heard the first sound of the coming of the planes. 欧内斯特·海明威.丧钟为谁而鸣.
There aren't enough planes to risk it. 欧内斯特·海明威.丧钟为谁而鸣.
No more planes came over. 欧内斯特·海明威.丧钟为谁而鸣.
Instantly he elevated the planes of his machine, and his aeroplane obeyed his touch, shot upward, and flew over the Antoinette. 鲁伯特·萨金特·荷兰.历史性发明.
Get me planes one, Duval said, suddenly taking all responsibility. 欧内斯特·海明威.丧钟为谁而鸣.
Then I may take it that when the planes unload, the attack has started? 欧内斯特·海明威.丧钟为谁而鸣.
I have seen the Red planes when they were something serious, the soldier on the bunk said. 欧内斯特·海明威.丧钟为谁而鸣.
These were our planes. 欧内斯特·海明威.丧钟为谁而鸣.
Planes you saw. 欧内斯特·海明威.丧钟为谁而鸣.
Just then they heard the planes. 欧内斯特·海明威.丧钟为谁而鸣.
I never noticed when the planes came back. 欧内斯特·海明威.丧钟为谁而鸣.