He waltzed across to Helen and sat down beside her.

他轻松如地走到海伦身边坐下。

His bad English inhibits him from speaking freely.

他英语学得不好, 这使他不能表达如。

The gymnast performed on the balance beam with an easy grace.

体操运动员平衡木上表演得如。

He sat in a relaxed pose.

他轻松如地坐着。

He was gradually getting more supple.

他的身体渐可以活动如。

There are quite a number of asymptomatically infected in the population, and they may discharge hepatitis A virus at certain times and under certain conditions.

无症状感染者中为数不少，一定时期和条件下也可排出甲肝病毒，但此时带毒者常活动如，不易管理，因而作为传染源有重要意义。