非正>毫无结果,落空,失败
1. 崩溃:drop the reins of government 下台 | drop through 崩溃 | drop to one's knees 迫使某人屈服
2. 崩溃, 失败:drop throat 沉降式流液洞. | drop through 崩溃, 失败. | drop to 下降到. 跌到.
3. 落空,失败:cut through 穿过,凿穿 | drop through 落空,失败 | fall through 失败,落空
4. danci.911cha.com
4. 滴穿:droppingmercuryelectrode 滴汞电极 | drop-through 滴穿 | drop-weighttest 落重试验