Nanostructured
纳米结构的
🗣️ 情景例句
Excuse me. Can you help me?
对不起 你能帮帮我吗
Knowledge will not be aquired without pain and application.
不花力气，不下功夫是得不到知识的。
She was wearing a full-length skirt which swept the ground.
身穿一条拖地长裙，