Fractography
n. 金属断面的显微镜观察\\n[医] 参差表面描绘术
🗣️ 情景例句
I lost.
我输了。
Don't forget to invite him.
不要忘记邀请他。
Jack was an excellent tennis player. He was able to beat anybody.
竭克是个网球健将。他天下无敌。