1. It is a heavy load for an 11-year-old.
    对于一个11岁的孩子来说，这样的负担太沉重了。

2. I have never been good at guessing weight, but I know Sam feels awfully heavy when I carry him around the city all day.
    我从不擅长猜测体重，但我知道我整天抱着他在街上走时感觉他非常重。

3. From a heavy gun was raised, the captain realized that the ship must have been a cruiser.
    船长根据捞上来的一门重炮，判断出这条船大概是一艘巡洋舰。

4. From a heavy gun that was raised, the captain realized that the ship must have been a cruiser.
    从捞起的一门大炮来看，船长认为那艘船一定是艘巡洋舰。