The students were told to write two compositions with given topics and word number. The author collected 180 valid writing samples for analysis.

要求每个学生按照规定的话题和字数完成两篇作文，作者最终收集了有效样本180篇。

youdao

Te-free memory material with adjustable crystallization temperature, melting point and crystallization activation energy can be obtained by changing the ratio of the two compositions.

通过调整这种材料中两种元素的组份，可以得到具有不同结晶温度、熔点和结晶激活能的存储材料。

youdao

Give me the temperature and pressure and these two components, like water and alcohol, for instance, and I can tell you everything about the compositions. It's very powerful.

给我温度和压强，还有两种组分，比如说水和酒精，我可以告诉你组成的所有信息，这很强大。

youdao

One of Mr. Alterman's two compositions in the set, "The First Night Home, " is a ballad for the ages.

WSJ: Joe Alterman Strikes a Chord | By Nat Hentoff

In studying the data from the probe, the scientists were puzzled by two radically different rock compositions.

FORBES: Mercury May Have Once Had An Ocean Of Lava

His latest release, Re-Imagination, focuses on his own compositions while still incorporating his re-interpretation of two jazz standards.

NPR: Eldar: Complex Improvisation