Compound dynamo
[建] 复绕发电机
🧩 词语组成解析
🗣️ 情景例句
Have you been waiting for me for a long time?
你已经等我很久了吗？
She's engaged married to John.
她和约翰订婚 结婚了。
This is because they had no natural enemies until the arrival of humans and therefore did not need to develop flying wings.
这是因为人类到达这里之前，这些鸟没有天敌，因此，它们不需要发育飞行的翅膀。