Hole-electron pair
[电] 电洞电子对
🧩 词语组成解析
hole
[hol]
n. 洞，孔;洞穴，穴;缺陷;<口>绝境;
vt.& vi. （在…上）打洞或穿孔;
vi. 凿洞;（高尔夫球等）进洞;
electron
[i'lektrɔn]
n. 电子;
pair
[pɛə]
n. 一副;一对男女;套在一起的两匹马;雌雄成对的动物;
vt.& vi. （使…）成对，（使…）成双;
vi. 交配，交尾;
🗣️ 情景例句
Practice tenses as much as possible.
操练各种时态。
During the two years since I took charge of the department.
在我负责这个部门的两年中。
Did you hear about the new project?
你知道那个新项目吗？