箱子很沉重。
xiāngzi hěn chénzhòng.
The box is very heavy.
包太沉重了。
bāo tài chénzhòng le.
The bag is too heavy.
气氛很沉重。
qìfēn hěn chénzhòng.
The atmosphere is very heavy.
他脸色沉重。
tā liǎnsè chénzhòng.
He looks grave.
