Bound electron
[化] 束縛電子
?? 詞語組成解析
bound
[ba?nd]
vi. 跳，彈跳;限制;接壤;
vt. 給…劃界，限制;使彈回，使跳躍;束縛;
n. 界限，限制;躍起;（球等的）反跳;
adj. 用帶子綁住的;有義務的;裝訂的，有封面的;[化，物]結合的;
bound(to bind)→裝訂好的；必定；決心的；被束縛的
electron
[i'lektr?n]
n. 電子;
??? 情景例句
But there are one point which I'd like to bring up about the packing.
不過還有一點我得提出來，關于包裝問題。
They intend to stop all traffic through the ports.
他們預定關閉港口的全部交通。
Light the fire not so near the entrance that the wind will blow the fire out, and not so far in that the smoke will fill the cave, said my brother.
“不要太靠近洞口點火，風會把火吹滅的；也不要太靠里面，那樣煙會充滿山洞的，”我弟弟說，