Valence shell
[化] 价电子层
🧩 词语组成解析
valence
[['veiləns]]
n. 原子价\\n[化] 化合价; 原子价
shell
[ʃel]
n. （贝、卵、坚果等的）壳;外壳;炮弹;（人的）表面性格;
vt. 去壳，脱落;炮击;
vi. 剥皮;炮轰;
🗣️ 情景例句
This will be a perfect jacket for the wintertime
这一件夹克就很受用
I'd stay if they promoted me, but I can't see that happening.
假如他们提升我，我就留下来，但我看那是不可能的。
Then see which plants grow higher, measure them with a ruler and write down your results.
过后看看哪种西红柿长得比较高，用尺子量量并记录下你的实验结果。