Pharma-
pref. 药
🧩 词语组成解析
n. 制药公司
🗣️ 情景例句
Keep your chin up.
别灰心。
If he doesn't help him, I will.
如果他不，我将帮助他。
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。