漫不经心地

He uncarefully dropped the vase, shattering it into pieces.
他不小心将花瓶摔在地上，摔得粉碎。
The chef was careless with the hot oil, causing a fire.
厨师不慎与热油接触引发了一场火灾。
She uncared for her appearance today, wearing a messy bun and old clothes.
她今天不太在意自己的外表，披头散发地穿着旧衣服。
The student didn't uncarefully study for the exam, resulting in a poor grade.
学生没有认真复习考试，结果得了低分。
The mechanic forgot to tighten a bolt, leading to a serious engine issue.
机械师忘了拧紧一个螺栓，导致发动机出现严重问题。
The artist painted the landscape uncarefully, missing some important details.
艺术家在画风景时不够仔细，漏掉了些重要细节。
The gardener uncaredly watered the plants, not noticing that some were already soaking.
园丁粗心地给植物浇水，没有注意到有些植物已经泡水了。
The scientist was careless with chemicals, nearly causing an explosion.
科学家不小心处理化学品，差点引起爆炸。
The engineer did not uncarefully inspect the bridge, ensuring its safety.
工程师仔细检查了桥梁，确保其安全。
The cook forgot to season the dish properly, making it taste bland.
厨师忘记适当地调味，使得菜肴尝起来平淡无味。