Shutterless
a. shutter的变形
🗣️ 情景例句
Yes.
是的。
If you want knowledge,you must toil for it.
若要求知识，须从勤苦得。
at eighty can knock us out, and into our grave.
能到了80岁可能会使我们一蹶不振而进入坟墓。