Phenylurethane
[化] 苯氨基甲酸乙酯
🗣️ 情景例句
to plan the refurnishing of the old library
计划重新整修老图书馆
Karl must concentrate on his work.
卡尔必须集中精力于自己的工作。
and a very firm hand must be employed in the early stages.
因此开始阶段需要有一位强有力的老手。