Invariability
n. 不变, 不变性, 安定性
📖 牛津释义
invariability
n[U].
🗣️ 情景例句
and you care about us,
而且关心我们大家，
It's one o'clock sharp.
现在一点整。
Sally was very excited because she had never travelled on a train before.
萨莉非常激动，因为她从未乘过火车。