dropped

grammar · medium

易错句子I missed a drop call from my boss this morning.

正确表达I missed a dropped call from my boss this morning.

在名词前作定语要用过去分词 dropped，动词原形 drop 不能直接充当形容词。汉语的“掉线、掉落”没有词形变化，学习者容易把动词原形直接搬到名词前面。

grammar · medium

易错句子Sorry I didn't pick up — there were three dropped calls while I was out.

正确表达Sorry I didn't pick up — there were three missed calls while I was out.

“未接来电”是 missed call，指没接到的电话；dropped call 指通话中途突然断线。两者意思不同，不能互换。

grammar · medium

易错句子There was a big dropped in phone sales last month.

正确表达There was a big drop in phone sales last month.

表示“下降、下跌”时要用名词 drop；dropped 是形容词或过去分词，不能作名词，所以不能用在冠词 a 或介词后面。