引入 v. introduce; import; bring in; innovate; usher in
什 adj. varied; various; assorted; miscellaneous。num.
评选 n. selection。v. Selection; appraise and elect; cho
nucleus n. 原子核；细胞核；核心，中心；神经核；（彗星的）核
from ape to man 从猿到人从猿到人。
食不知味 Something is in my mind, and nothing to eat
办事处 office; agency; branch office。
infrastructure n. 下面结构；永久性军事设施；基础设施，基础建设
gallery n. 美术馆，画廊；（大厅的）楼座，楼上旁听席；（剧场中的）顶层楼座；阳台，露台
滞留 n. retention; hold-up; stagnation; delay; backlog。
见效 v. take effect; work; be effective; show results;
至高无上 idiom supreme; paramount; utmost; unsurpassed; hig
一年级 n. first grade; first year (in school)。
笔画 n. strokes; stroke。
成效 n. effect; result; outcome; fruit; benefit; effica