Fullerboard
绝缘纸板
🗣️ 情景例句
Don't be upset by Boswell's commercial.
不要为了Boswell的广告而忧心。
This is my fourth year of college, I'm a senior.
这是我上大学的第四年，我是四年级学生。
I went further back into the cave and stopped still.
我向前走拐进岩洞，停住不动。