Definition: to become flat or to make something become flat Level: C2
把面团擀开，用手把它压平。
Roll out the dough and ___flatten it with your hands.
他们想要平整土地以便施工。
They wanted to ___flatten the land for construction.
大雪会压平原野上的草。
The heavy snow will ___flatten the grass in the field.
