Lecithid
蛇毒溶血卵磷脂
🗣️ 情景例句
to plan the refurnishing of the old library
计划重新整修老图书馆
Every dog has his day, and every man his hour.
人人都有得意的日子。
The article began: 'Hundreds of steps lead to the high wall which surrounds the president's palace'.
“几百级台阶通向环绕总统的高墙。