Acetyltryptophan
乙酰氨酸
🗣️ 情景例句
Everybody help yourselves.
大家请便吧。
She failed to call the office to cancel her appointment.
她没能打电话给办公室取消她的约会。
It looks as if it hasn't been washed following the instructions.
这看起来没按说明来洗。