The ivory Buddha carved by Shen Weizhong is the world's smallest piece of sculpture, its size being just four-fifths of a grain of rice.

沈为众雕刻的象牙佛像是世界上最小的雕刻，它只有一粒米的五分之四大。

There's more than a grain of truth in that.

其中包含不少真理。

There isn't a grain of truth in those rumours.

那些谣传一点也不可靠。

There is not a grain of truth in what she says.

她说的没有一句真话。

You have to take these findings with a grain of salt because respondents tend to give the answers they feel they should.

你必须对这些结果有所保留，因为调查对象们倾向于给出他们认为应该给的答案。