| 单词 | 验定 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔perform〕Sophisticated laser experiments are performed regularly in the laboratory.复杂的激光实验定期在实验室举行。美国传统〔schedule〕The test is scheduled to begin in one hour.测验定于一小时后开始。韦氏高阶 |
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