Biolith
生物岩
🗣️ 情景例句
We can write letters. It's cheaper than calling.
我们可以写信就好，那比打电话便宜。
Try (your friend) before you trust him.
朋友要经考验，才能取得信任。
'What are you doing?' she asked.
“你在干什么？”她问道。