Nonmetamorphic
adj. 非变质的
🗣️ 情景例句
He doesn't have any beliefs; he just takes one day at a time.
他没有什么信仰，每天只是得过且过
When a dog is drowning,every one offers him drink.
待到狗溺水，众人给水喝。
For one thing they keep the water clean.
一来，水下植物可以保持水的清洁。