n.坟墓；死亡
adj.严肃的；严重的；庄重的
v.雕刻；铭记；
She laid the bouquet on the newly turfed grave. 她把那束花放置在新铺上草皮的坟墓上。
You are just digging your own grave if you go on smoking so heavily. 你继续这样过度吸烟，就是在自掘坟墓。
用作形容词 (adj.)His face was grave when I told him my decision. 当我告诉他我的决定时，他的脸色很严肃。
The situation poses a grave threat to world peace. 这局势对世界和平构成了严重的威胁。
He announced the news in a grave voice. 他用庄重的声音宣布这一消息。
