调查人员指出，对于那些喂以婴儿食品的婴儿，父母等到4个月之后才给婴儿食用固体食物，这一点十分重要。

For those babies who are raised on formula, it seems to be especially important that parents wait until babies are at least four months old to feed them solid foods, researchers say.

youdao

喂丝机是炉外精炼设备之一，它对提高钢的质量具有十分重要的意义。

Metal thread feeding machine is one of the refining equipment outside the steel-making furnace, which is quite important to improve steel-making quality.

youdao

喂丝机是炉外精炼设备之一，它对提高钢的质量具有十分重要的意义。

Metal thread feeding machine is one of the refining equipment outside the steel-making furnace, which is quite important to improve steel-making quality.

youdao