Undecyl
[有化]十一烷基
🗣️ 情景例句
How long have you known her?
你认识她多久了？
John always takes pleasure in leaving the city for a while.
约翰常常以溜出城镇一会儿为乐。
the thought of rest will be not unwelcome.
有长眠的愿望未尝不是一件好事。