Spirarsyl
胂苯甘氨酸
🗣️ 情景例句
The policemen could not cope with the crowds.
警察不能对付群众。
You can't tell anybody by what they seem.
你不能凭外表判断人。
Fortunately, however, ancient men made tools of stone, especially flint,
然而， 幸运的是，远古人用石头制作了工具，特别是用燧石，