清澄，透明；

1. Please write with lucidness.
    请写得清楚易懂。

2. lucidness的反义词

2. They doubted his lucidness.
    他们怀疑他是否神志清醒。

1. 清澄：lucidly 清透地 | lucidness 清澄 | lucifer 魔鬼

2. 清楚易懂, 明晰; 神志清醒 (名)：lucidly 清透地; 透明地 (副) | lucidness 清楚易懂, 明晰; 神志清醒 (名) | Lucifer 晓星, 金星; 黄磷火柴; 魔王, 撒旦 (名)

1. free from obscurity and easy to understand
    the comprehensibility of clear expression

    Synonym: clarityluciditypellucidityclearnesslimpidity