to lag behind
01
落后, 进展缓慢
to develop or progress more slowly than someone or something else
语法信息
形态构成
短语
动作动词
规则
不可分离
小品词
behind
基本动词
lag
现在时
lag behind
第三人称单数
lags behind
现在分词
lagging behind
一般过去时
lagged behind
过去分词
lagged behind
例子
American companies are lagging behind their Chinese counterparts in the development of artificial intelligence.
美国公司在人工智能的发展上落后于他们的中国同行。
