n. 臀部（bottom的复数形式）；底部沉积物；残留物；蒸馏残渣；下装 v. 在…上装底（bottom的第三人称单数形式）
参考例句
1. " He adds, "There are hydrogen sulfide producing bacteria growing at several places on our Earth's oceans' bottoms today. 他又说道，“当今，在地球海洋底部的好几个地方，都有释放硫化氢的细菌正在滋生。”
2. We think the rising share markets will help most all sectors gain some recovery and provide the illusion the bottoms are in and new bases found. 我们认为，提升股票市场将有助于让大多数部门获得一些恢复，并且提供了股市触底和发现新的基地的幻想。
3. Then, if on the following day the option moves down to a lower bottom, you move the Trend Line to the low of that day and continue to move it down as long as it makes lower bottoms. 只要选择的行情一直持续并且创出更高的底部和更高的顶部，趋势指标或趋势线每天提高到最高的价格并且只要市场继续移动创出更高的顶和更高底部。
