Impugned
v. 非难, 指谪( impugn的过去式和过去分词 ); 对…有怀疑
🗣️ 情景例句
Both are equally effective.
两者都有效。
Look before you leap; see before you go.
三思而行。
The apparatus thus described, however,
然而，这里所说的仪器