This code is new, and relatively untested.

此代码是新的，和相对未经考验的。

youdao

Like Mr Koizumi before him, he is more or less untested and, at 51, relatively young.

他像以前的小泉，多少有些不经事世，51岁，相对年轻。

youdao

Merck, in turn, points out that its older technology is tried and true, while Glaxo's is still relatively untested.

FORBES

The article also looks at whether those works could be potentially a better buy than those by relatively untested young artists, who after the first wave of buying and speculation, could see prices for their works slump.

FORBES: Art Prices: What Goes Up Can Also Come Down