词根英语

词根的英语是stem。

stem的复数形式是stems，第三人称单数形式是stems，过去式形式是stemmed，过去分词形式是stemmed，现在分词形式是stemming。相关短语有stem cell干细胞，sappy stem多汁茎，aerial stem气生茎，fertile stem能育茎。可造句子如下：

1、Twist the string carefully around the second stem with the other hand.

用另外一只手小心地把细绳缠绕到第二根茎上。

2、Cut them off cleanly through the stem just below the node.

就从茎节下面，沿茎干把它们全砍掉。

3、The stinging nettle has a square stem and little hairs.

荨麻长有四方茎和细小茸毛。

4、He chewed the stem of his pipe and eyed her sceptically.

他嘴里衔着烟斗柄，满腹狐疑地打量着她。