Parathesin
對氨基苯甲酸乙酯
??? 情景例句
Thank you.
謝謝你。
Christmas comes but once a year.
佳節良辰，機會難得。
So great is our passion for doing things for ourselves, that we are becoming increasingly less dependent on specialized labour.
現在我們自己動手做事的熱情很高，結果對于專業工人的依賴越來越少了。