1. 在英國汽車靠左側行駛。
   In Britain cars are driven on the left.
2. 主動脈系統(tǒng)血管的主干道，將血液由心臟左側輸送到除肺部以外的所有肢體及器官的動脈里
   The main trunk of the systemic arteries, carrying blood from the left side of the heart to the arteries of all limbs and organs except the lungs.
3. 在英國，車輛是靠路的左側行駛而不是靠右側行駛。
   In Britain we drive on the leave side of the road, not the right side.
4. 汽車碰撞時左側的翼子板撞壞了。
   The nearside wing was damaged in the collision.

側的英語翻譯：