单词：ballast-weed
单词：ballast-weed 相关文章
Part 13 Ballast handling 1. Scuppers plugged. 2. Open sea suction valve and report. 3. Sea suction valve closed. 4. Ballast pump stopped.
海事英语
Agriculture Report - Getting a Firm Grip on Weed Control 农业报道 - 控制杂草生长的办法 This is the VOA Special English Agriculture Report. 这里是美国之音慢速英语农业报道。 When is a plant considered a weed? Experts at Pen
2013年VOA慢速英语(一)月
ballast, ['bləst] n 压舱物（放在船舱或热气球吊篮里的重物，以增加稳定性）；（性格上的）稳定因素 【记】ball球，last最后－最后的球－船最底层放了好多球－压舱物 【类】ballast:instability＝
不择手段背单词
Plants were world travelers, long before tourists like you and me, were able to fly off to vacation around the world. When Columbus sailed west, he was seeking precious spices of the Indies. He missed his original destination, but because he and othe
英语听力文摘 English Digest
heavyweight 重量级的，有影响力的人 We need some heavyweight partners. 我们需要一些重量级的合作伙伴。 He is a heavyweight in the IT business. 他是IT界的重量级人物。
愉悦口语
That's all? 仅仅这个数目吗？ That's all, Professor Aronnax, and the calculation is easy to check. 仅仅这个数目，阿龙纳斯先生。并且，很容易用计算来证实。 Now then, I have supplementary ballast tanks capable of shippi
《海底两万里》中英双语有声读物