in-,不，非，efficient,有效率的。

1. Overall, barter is a very inefficient means of organizing transactions.

总之，易货贸易是一种效率很低的交易形式。

来自柯林斯例句

2. Non-state firms gradually elbow aside the inefficient state-owned ones.

非国有企业逐渐挤掉了效率低下的国有企业。

来自柯林斯例句

3. The protesters say the government is corrupt and inefficient.

抗议者称政府腐败无能。

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4. The train company is overstaffed and notoriously inefficient.

铁路公司冗员过多，工作效率出了名地低。

来自柯林斯例句

5. The welfare system is grossly inequitable and inefficient.

福利制度非常不公平，效率也极低。

来自柯林斯例句

[ inefficient 造句 ]