Hardness penetration
[机] 硬化深度
🧩 词语组成解析
hardness
['hɑrdnɪs]
n. 坚硬;<物>硬性;困难;冷酷;
penetration
[,pɛnɪ'treʃən]
n. 渗透;穿透;[军]突破;洞察力;
🗣️ 情景例句
Yes, he's my brother.
是的。他是我哥哥。
But it's supposed to get cloudy and windy again this afternoon.
但是，据说今天下午又要转阴刮风了。
He's putting on his school clothes.
他在穿校服。