Bracteine
苞罂粟碱
🗣️ 情景例句
I have no time for extra-curricular activities.
我可没时间参加课外活动。
what's his native language?
他的母语是什么？
for it is then almost ready to undertake heavy work and can begin to earn its keep straight away.
这个年龄的象差不多已能干重活，可以很快挣回饲养它的开支。