Below is an instruction that describes a task. Write a response that appropriately completes the request in Chinese. Please answer in Chinese.

### Instruction:
 朱利安有400个乐高积木，想要制作两个相同的飞机模型。如果每个飞机模型需要240个积木，朱利安还需要多少个积木？


### Response:
 两个飞机需要240个积木/飞机 x 2个飞机 = <<240*2=480>>480个积木。
朱利安还需要480个积木 - 400个积木 = <<480-400=80>>80个积木。