ประโยคภาษาจีน : 中文句子 |
|---|
|
suī rán 虽然 shì wèi zǔ zhī 世卫组织 cháng qī yǐ lái 长期以来 gǔ lì 鼓励 shǐ yòng 使用 wén zhàng 蚊帐 dàn shì 但是 zuì jìn 最近 kāi fā 开发 de 的 cháng xiào 长效 shā chóng 杀虫 wén zhàng 蚊帐 yǐ 已 xiǎn zhù 显著 tí gāo 提高 qí 其 yǒu xiào xìng 有效性 |
| While the use of bed nets has long been encouraged by WHO, the recent development of “long-lasting insecticidal nets” (LLINs) has dramatically improved their usefulness. |