Leed
[化] 低能电子衍射
🗣️ 情景例句
It's extremely good of you to do this for me.
你帮我做了这件事，真是太好了。
I wake my sister up.
我叫醒我妹妹。
It was spring,but the weather was awful.It rained all the time.
是春天，但天气太糟了。一直在下雨。