in summer

• In summer , yes . but in winter its very cold
  （在夏天很热，但是冬天非常冷。 ）
• It ' s always hot in summer , the sun shines everyday
  夏天总是很热,每天阳光明媚
• Hybrid seed production technique of jindan 41 in summer
  41号玉米夏播制种技术
• The hillside is covered by grass and flowers in summer
  夏天时，山坡上长满了花草。
• My family always goes on vacation together in summer
  我们家在夏天总是一起去度假。
• In summer , flowers are competing in splendor in the garden
  夏天的花园，百花争艳。
• In summer , the south atlantic anticyclone
  到了夏天，南大西洋的高气压反气旋
• It ' s hot and annoying to wear a helmet in summer
  在夏天戴安全帽既热又麻烦。
• In summer we usually find huanghe river full of waters
  夏天我们通常发现水满黄河。
• The river teems with all kinds of fish in summer
  夏天这条河里各种各样的鱼多得很。