The consequences will be very grave if nothing is done.

　　如果不采取任何措施后果將會(huì)是非常嚴(yán)重的。

　　The country's economy is now in grave peril.

　　現(xiàn)在，這個(gè)國(guó)家的經(jīng)濟(jì)陷入了嚴(yán)重危機(jī)。

　　Is there life beyond the grave?

　　人死后有來生嗎？

　　These words are carved on the stone beside his grave.

　　在他的墓碑上刻著這樣的話。

　　He was looking correctly grave.

　　他表情嚴(yán)肅得體。