🧩 词语组成解析
roll
[rəul]
vt. 辗;使（眼球等）左右转动;（使）原地转圈;滚动;
vi. 左右摇晃;翻滚;开始移动，启动;
n. 名册;滚翻;
🗣️ 情景例句
The Post Office aims to improve its quality of service.
邮局锐意改善服务质量。
Stayed up late
熬夜
Later, for its personal safety and practical needs,
慢慢地，由于自身安全和实际需要，