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会员注册今日单词：
| 单词 | 中文释义 | 英文释义 | 例句 |
| costly | 1.昂贵的（形容词） 2.损失巨大的（形容词） |
1.(adjective) Expensive
2.(adjective) Involving great loss or sacrifice |
EXAMPLE: The successful young executive spent a lot of money on a costly new car. 这位成功的年青经理人花大笔钱卖了一部昂贵的新车。 EXAMPLE: The costly war saddened the families of many soldiers who were killed.这场战争伤亡巨大，许多阵亡士兵的家庭陷入悲痛之中。 |
今日短语：
| 短语 | 中文释义 | 英文释义 | 例句 |
| black tide | 黑潮 | Ocean pollution (especially used for petroleum spilled from a wrecked ship carrying oil) | EXAMPLE: When the huge oil tanker hit the reef, the disaster caused a black tide that harmed most of the nearby seacoast and ruined the local fishing industry. 那艘巨型油轮触礁，灾难导致了一场黑潮，给沿海附近地区造成了破坏，毁掉了当地的渔业。 |