tā / héngguò / jiébīng / de / hémiàn / shí / měi / yí / bù / dōu / xiān / yòng / mùgùn / shìtàn / bīngcéng

他横过结冰的河面时，每一步都先用木棍试探冰层。

As he crossed the frozen river, he tested the ice with a stick before taking each step.