Nonhazardous
无危险的, 安全的
🗣️ 情景例句
There's a big market today in wedding dresses.
结婚礼服在目前有很大的市场。
Don't forget to put stamps on your letter.
别忘了贴邮票。
Sorry, I can't. I have to tidy my room.
对不起，我不能去。我得收拾房间。