Leucopterin
[化] 隱色蝶呤; 無色蝶呤\\n[醫] 白蝶呤
??? 情景例句
OK.
好。
Congratulations on your winning the prize.
我恭喜你得獎了。
Then he spoke slowly, but I could not understand him.
于是他說得慢了，可我還是聽不懂。