Pona
abbr. paraffin; olefin; naphthene; aromatic (test for petroleum octane rating) 鏈烷烴
??? 情景例句
We are four in all.
我們家共有四口人。
Whew! It's hot!
哇！好熱！
But we have a few small differences, too.
但是我們之間還有些小的差別的。