Definition: causing harm Level: B2
已知这类化学品对环境有害。
This group of chemicals is known to be ___harmful to the environment.
在昏暗的光线下阅读可能对眼睛有害。
Reading in dim light can be ___harmful to your eyes.
污染对海洋生物有有害的影响。
Pollution has a ___harmful effect on marine life.
