zhí / wù / de / xiàng / xìng / shǐ / tā / men / de / jīng / zhú / jiàn / cháo / xiàng / yáng / guāng / shēng / zhǎng

植物的向性使它们的茎逐渐朝向阳光生长。

植物的向性 causes their stems to gradually grow toward the sunlight.