At least some of the material must have retained the signal unaffected by subsequent changes in the environment.

至少有一些材料肯定保留了不受后续环境变化影响的信号。

youdao

Stone statues were worked from single rectangular blocks of material and retained the compactness of the original shape.

石像是由单个长方形块状材料制成的，并保持原有形状的坚实度。

youdao

Some (like the Whittalls) retained British nationality over generations of Ottoman life, and it is their English-language diaries, letters and documents that provide Mr Milton with his best material.

有些家族(如惠蒂尔家)在世代的奥斯曼生活中依然保持着英民族的特征，正是他们的英文日记、信函和文件为米尔顿提供了第一手的资料。

youdao

Think about back in your childhood, your nursery rhymes, the capacity of aural material to be retained.

就像你们儿时听到的童谣,我们同样能记住相当多的儿歌

耶鲁公开课 - 聆听音乐课程节选