Farvitron
线振质谱计
🗣️ 情景例句
She has a special way with kids.
她对孩子很有一套。
One thorn of experience is worth a whole wilderness of warning.
一次痛苦的经验抵得上千百次的告诫。
we can start any time you're ready.
只要你准备好了，我们随时可以开始。