Quantum electrodynamics
n. 量子电动力学
🧩 词语组成解析
n. 电动力学\\n[化] 电动力学
🗣️ 情景例句
Certainly.
当然可以。
Know something like the palm of one's hand.
熟知其事，了如指掌。
We enjoy staring at them, entranced as they go about their business, unaware (we hope) of our presence.
我们喜欢入迷地看它们做事，它们不知道（但愿如此）我们就在它们身边。