Polyacetals
聚缩醛(树脂)
🗣️ 情景例句
T-O-P-S--means Talented Older People's Society. T-O-P-S
全名是优秀老人协会。
Perhaps he isn't here.
也许他不在这儿。
I'll go and look after the man, she said.
“我去照料那个人”，她说。