Optionally
辅助 Assistantadv. 随意地
🗣️ 情景例句
Look, they have a special offer on leather shoes.
看，他们这儿皮鞋有特殊优惠。
Usually,I have a big breakfast.
通常,我吃一顿丰盛的早餐。
Thank you very much, sir.
多谢，先生。