“使成新月形”可以翻译为 “form into a crescent shape” 或者 “shape into a crescent”。
例如：
They arranged the flowers to form into a crescent shape on the table.（他们把花在桌上摆成新月形 。）
The sculptor shaped the clay into a crescent.（雕塑家把黏土塑成了新月形 。）