难过的用英语怎么说sad

Sad is an adjective used to describe a feeling of unhappiness, sorrow, or disappointment.
The origin of the word "sad" can be traced back to the Old English word "sæd," which means "steady in mind, joyful." Over time, the meaning of the word evolved to describe a negative emotion.
Examples of how "sad" is used in a sentence:
"She felt sad when she received the news of her friend's passing."
Translation: 她在得知朋友去世的消息时感到难过。
"The movie was so sad that it made him cry."
Translation: 电影太悲伤了，以至于他哭了。
"He tried to hide his sadness with a fake smile."
Translation: 他试图用假笑掩饰自己的难过。