Valerin
甘油三戊酸酯
🗣️ 情景例句
I get the picture.
我知道是怎么回事了。
No one is answering the phone..
没有人接电话。
Jim, could you help me, please? I want to get some books.
吉姆，你能帮我一下吗？我想拿些书。