preparatorsCOCA²⁵⁴³³⁷⁺⁶ 基本例句 🌏预备员 Specimens from all over the world come in, still encased in the rock or mud where they were found, and it's the job of the fossil preparators to get the skulls, femurs and teeth out. 世界各地的标本在被运到这里时，还被密封在岩石或发现源地的污泥之中，只有经过化石准备工作以后，那些头颅、股骨和牙齿才能显露出来。 yeeyan