Particle trajectory
[化] 粒子轨迹
🧩 词语组成解析
🗣️ 情景例句
It was nice here, too.
这儿也很好。
It is our permanent principle that contracts are honored and commercial integrity is maintained.
重合同、守信用是我们的一贯原则。
About twelve Kilometers.
大约12公里。