n. 标准,规格;旗,军旗;度量衡标准;直立支柱;
adj. 标准的,合格的;普遍的,一般的;公认为优秀的;
🗣️ 情景例句
Yes, most of them are, except for the plastic parts.
对,除了塑料制品其他都是。
If it doesn't rain tomorrow, I think I'll go shopping.
如果明天不下雨的话,我打算购物。
But here we come up against the most difficult of all obstacles to contact with people on other planets ----the astronomical distances which separate us.