CREATE TABLE IF NOT EXISTS `en_word_sentence`
(
    `id`          BIGINT PRIMARY KEY AUTO_INCREMENT COMMENT '例句记录主键ID',
    `word_id`     BIGINT NOT NULL COMMENT '单词ID，关联 en_word.id',
    `sentence_en` TEXT COMMENT '英文例句',
    `sentence_cn` TEXT COMMENT '中文例句',
    `delete_flag` TINYINT(1) DEFAULT 0 COMMENT '删除标志，0-正常，1-删除',
    `create_at`   DATETIME   DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
    `update_at`   DATETIME   DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间'
) ENGINE = InnoDB
  DEFAULT CHARSET = utf8mb4
  COLLATE = utf8mb4_unicode_ci COMMENT ='英语单词例句表';