Ir
[化] 红外光谱法\\n[医] 铱(77号原素)
🗣️ 情景例句
No, thank you.
不用 谢谢你。
Very please to meet you.
见到您很高兴。
She heard the front door open and heavy footsteps in the hall.
她听见前门被打开，走廊里响起重重的脚步声。